diff --git a/lib/lbt/bundle/Builder.js b/lib/lbt/bundle/Builder.js
index 71a839fb9..3fc71dbcc 100644
--- a/lib/lbt/bundle/Builder.js
+++ b/lib/lbt/bundle/Builder.js
@@ -353,7 +353,13 @@ class BundleBuilder {
 			// If first column of the first line is not already mapped, add a mapping for the same reason as above.
 			// This is typical for transpiled code, where there is a bunch of generated code at the beginning that
 			// can't be mapped to the original source
-			map.mappings = "AAAA," + map.mappings;
+			if (map.mappings) {
+				map.mappings = "AAAA," + map.mappings;
+			} else {
+				// If there are no existing mappings (e.g. if the file is empty or only comments),
+				// make sure to still define a single mapping
+				map.mappings = "AAAA";
+			}
 		}
 
 		map.sourceRoot = path.posix.relative(
diff --git a/test/expected/build/application.a/dest-deps/resources/library/d/empty-dbg.js b/test/expected/build/application.a/dest-deps/resources/library/d/empty-dbg.js
new file mode 100644
index 000000000..c82b694dc
--- /dev/null
+++ b/test/expected/build/application.a/dest-deps/resources/library/d/empty-dbg.js
@@ -0,0 +1,3 @@
+/*!
+ * Some fancy copyright
+ */
diff --git a/test/expected/build/application.a/dest-deps/resources/library/d/empty.js b/test/expected/build/application.a/dest-deps/resources/library/d/empty.js
new file mode 100644
index 000000000..8af07c600
--- /dev/null
+++ b/test/expected/build/application.a/dest-deps/resources/library/d/empty.js
@@ -0,0 +1,5 @@
+/*!
+ * Some fancy copyright
+ */
+
+//# sourceMappingURL=empty.js.map
\ No newline at end of file
diff --git a/test/expected/build/application.a/dest-deps/resources/library/d/empty.js.map b/test/expected/build/application.a/dest-deps/resources/library/d/empty.js.map
new file mode 100644
index 000000000..767ef9fbd
--- /dev/null
+++ b/test/expected/build/application.a/dest-deps/resources/library/d/empty.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"empty.js","names":[],"sources":[],"mappings":"","ignoreList":[]}
\ No newline at end of file
diff --git a/test/expected/build/application.a/dest-depself/resources/library/d/empty-dbg.js b/test/expected/build/application.a/dest-depself/resources/library/d/empty-dbg.js
new file mode 100644
index 000000000..c82b694dc
--- /dev/null
+++ b/test/expected/build/application.a/dest-depself/resources/library/d/empty-dbg.js
@@ -0,0 +1,3 @@
+/*!
+ * Some fancy copyright
+ */
diff --git a/test/expected/build/application.a/dest-depself/resources/library/d/empty.js b/test/expected/build/application.a/dest-depself/resources/library/d/empty.js
new file mode 100644
index 000000000..8af07c600
--- /dev/null
+++ b/test/expected/build/application.a/dest-depself/resources/library/d/empty.js
@@ -0,0 +1,5 @@
+/*!
+ * Some fancy copyright
+ */
+
+//# sourceMappingURL=empty.js.map
\ No newline at end of file
diff --git a/test/expected/build/application.a/dest-depself/resources/library/d/empty.js.map b/test/expected/build/application.a/dest-depself/resources/library/d/empty.js.map
new file mode 100644
index 000000000..767ef9fbd
--- /dev/null
+++ b/test/expected/build/application.a/dest-depself/resources/library/d/empty.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"empty.js","names":[],"sources":[],"mappings":"","ignoreList":[]}
\ No newline at end of file
diff --git a/test/expected/build/library.d-minified/preload/resources/library/d/empty.js b/test/expected/build/library.d-minified/preload/resources/library/d/empty.js
new file mode 100644
index 000000000..8af07c600
--- /dev/null
+++ b/test/expected/build/library.d-minified/preload/resources/library/d/empty.js
@@ -0,0 +1,5 @@
+/*!
+ * Some fancy copyright
+ */
+
+//# sourceMappingURL=empty.js.map
\ No newline at end of file
diff --git a/test/expected/build/library.d-minified/preload/resources/library/d/empty.js.map b/test/expected/build/library.d-minified/preload/resources/library/d/empty.js.map
new file mode 100644
index 000000000..767ef9fbd
--- /dev/null
+++ b/test/expected/build/library.d-minified/preload/resources/library/d/empty.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"empty.js","names":[],"sources":[],"mappings":"","ignoreList":[]}
\ No newline at end of file
diff --git a/test/expected/build/library.d-minified/preload/resources/library/d/library-preload.js b/test/expected/build/library.d-minified/preload/resources/library/d/library-preload.js
index 730758d70..916914b98 100644
--- a/test/expected/build/library.d-minified/preload/resources/library/d/library-preload.js
+++ b/test/expected/build/library.d-minified/preload/resources/library/d/library-preload.js
@@ -1,5 +1,11 @@
 //@ui5-bundle library/d/library-preload.js
 sap.ui.require.preload({
+	"library/d/empty.js":function(){
+/*!
+ * Some fancy copyright
+ */
+
+},
 	"library/d/legacy.js":'/*!\n * Some fancy copyright\n */\nvar topLevelVar="Old World";console.log("Hello "+topLevelVar);\n',
 	"library/d/manifest.json":'{"_version":"1.21.0","sap.app":{"id":"library.d","type":"library","embeds":[],"applicationVersion":{"version":"1.0.0"},"title":"Library D","description":"Library D","resources":"resources.json","offline":true},"sap.ui":{"technology":"UI5","supportedThemes":[]},"sap.ui5":{"dependencies":{"minUI5Version":"1.0","libs":{}},"library":{"i18n":false}}}',
 	"library/d/some.js":function(){
diff --git a/test/expected/build/library.d-minified/preload/resources/library/d/library-preload.js.map b/test/expected/build/library.d-minified/preload/resources/library/d/library-preload.js.map
index 1eabfb66d..2fd326774 100644
--- a/test/expected/build/library.d-minified/preload/resources/library/d/library-preload.js.map
+++ b/test/expected/build/library.d-minified/preload/resources/library/d/library-preload.js.map
@@ -1 +1 @@
-{"version":3,"file":"library-preload.js","sections":[{"offset":{"line":1,"column":0},"map":{"version":3,"names":[],"sources":["library-preload.js?bundle-code-0"],"mappings":"AAAA;AACA","sourcesContent":["sap.ui.require.preload({\n"],"sourceRoot":""}},{"offset":{"line":5,"column":0},"map":{"version":3,"file":"some.js","names":["someNonUglifiedVariable","console","log"],"sources":["some-dbg.js"],"mappings":"AAAA;;;CAGA,WACC,IAAIA,EAA0B,QAC9BC,QAAQC,IAAI,SAAWF,EACvB,EAHD","sourceRoot":""}}]}
\ No newline at end of file
+{"version":3,"file":"library-preload.js","sections":[{"offset":{"line":1,"column":0},"map":{"version":3,"names":[],"sources":["library-preload.js?bundle-code-0"],"mappings":"AAAA;AACA","sourcesContent":["sap.ui.require.preload({\n"],"sourceRoot":""}},{"offset":{"line":3,"column":0},"map":{"version":3,"file":"empty.js","names":[],"sources":[],"mappings":"AAAA","ignoreList":[],"sourceRoot":""}},{"offset":{"line":11,"column":0},"map":{"version":3,"file":"some.js","names":["someNonUglifiedVariable","console","log"],"sources":["some-dbg.js"],"mappings":"AAAA;;;CAGA,WACC,IAAIA,EAA0B,QAC9BC,QAAQC,IAAI,SAAWF,EACvB,EAHD","sourceRoot":""}}]}
\ No newline at end of file
diff --git a/test/expected/build/library.d/dest/resources/library/d/empty-dbg.js b/test/expected/build/library.d/dest/resources/library/d/empty-dbg.js
new file mode 100644
index 000000000..c82b694dc
--- /dev/null
+++ b/test/expected/build/library.d/dest/resources/library/d/empty-dbg.js
@@ -0,0 +1,3 @@
+/*!
+ * Some fancy copyright
+ */
diff --git a/test/expected/build/library.d/dest/resources/library/d/empty.js b/test/expected/build/library.d/dest/resources/library/d/empty.js
new file mode 100644
index 000000000..8af07c600
--- /dev/null
+++ b/test/expected/build/library.d/dest/resources/library/d/empty.js
@@ -0,0 +1,5 @@
+/*!
+ * Some fancy copyright
+ */
+
+//# sourceMappingURL=empty.js.map
\ No newline at end of file
diff --git a/test/expected/build/library.d/dest/resources/library/d/empty.js.map b/test/expected/build/library.d/dest/resources/library/d/empty.js.map
new file mode 100644
index 000000000..767ef9fbd
--- /dev/null
+++ b/test/expected/build/library.d/dest/resources/library/d/empty.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"empty.js","names":[],"sources":[],"mappings":"","ignoreList":[]}
\ No newline at end of file
diff --git a/test/expected/build/library.d/preload/resources/library/d/empty.js b/test/expected/build/library.d/preload/resources/library/d/empty.js
new file mode 100644
index 000000000..117426a83
--- /dev/null
+++ b/test/expected/build/library.d/preload/resources/library/d/empty.js
@@ -0,0 +1,3 @@
+/*!
+ * ${copyright}
+ */
diff --git a/test/expected/build/library.d/preload/resources/library/d/library-preload.js b/test/expected/build/library.d/preload/resources/library/d/library-preload.js
index 587515c70..4099e45b7 100644
--- a/test/expected/build/library.d/preload/resources/library/d/library-preload.js
+++ b/test/expected/build/library.d/preload/resources/library/d/library-preload.js
@@ -31,6 +31,11 @@ sap.ui.predefine("library/d/some", ["./library"], (_library) => {
 	console.log('Hello ' + someNonUglifiedVariable);
 });
 sap.ui.require.preload({
+	"library/d/empty.js":function(){
+/*!
+ * ${copyright}
+ */
+},
 	"library/d/legacy.js":'/*!\n * ${copyright}\n */\nvar topLevelVar = "Old World";\nconsole.log(\'Hello \' + topLevelVar);\n'
 });
 //# sourceMappingURL=library-preload.js.map
diff --git a/test/expected/build/library.d/preload/resources/library/d/library-preload.js.map b/test/expected/build/library.d/preload/resources/library/d/library-preload.js.map
index 8356c9adf..8e99bab16 100644
--- a/test/expected/build/library.d/preload/resources/library/d/library-preload.js.map
+++ b/test/expected/build/library.d/preload/resources/library/d/library-preload.js.map
@@ -1 +1 @@
-{"version":3,"file":"library-preload.js","sections":[{"offset":{"line":1,"column":0},"map":{"version":3,"names":[],"sources":["library.js"],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA","sourceRoot":""}},{"offset":{"line":24,"column":0},"map":{"version":3,"names":[],"sources":["some.js"],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA","sourceRoot":""}},{"offset":{"line":32,"column":0},"map":{"version":3,"names":[],"sources":["library-preload.js?bundle-code-0"],"mappings":"AAAA;AACA","sourcesContent":["sap.ui.require.preload({\n"],"sourceRoot":""}}]}
\ No newline at end of file
+{"version":3,"file":"library-preload.js","sections":[{"offset":{"line":1,"column":0},"map":{"version":3,"names":[],"sources":["library.js"],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA","sourceRoot":""}},{"offset":{"line":24,"column":0},"map":{"version":3,"names":[],"sources":["some.js"],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA","sourceRoot":""}},{"offset":{"line":32,"column":0},"map":{"version":3,"names":[],"sources":["library-preload.js?bundle-code-0"],"mappings":"AAAA;AACA","sourcesContent":["sap.ui.require.preload({\n"],"sourceRoot":""}},{"offset":{"line":34,"column":0},"map":{"version":3,"names":[],"sources":["empty.js"],"mappings":"AAAA;AACA;AACA;AACA","sourceRoot":""}}]}
\ No newline at end of file
diff --git a/test/fixtures/library.d-minified/main/src/library/d/empty.js b/test/fixtures/library.d-minified/main/src/library/d/empty.js
new file mode 100644
index 000000000..8af07c600
--- /dev/null
+++ b/test/fixtures/library.d-minified/main/src/library/d/empty.js
@@ -0,0 +1,5 @@
+/*!
+ * Some fancy copyright
+ */
+
+//# sourceMappingURL=empty.js.map
\ No newline at end of file
diff --git a/test/fixtures/library.d-minified/main/src/library/d/empty.js.map b/test/fixtures/library.d-minified/main/src/library/d/empty.js.map
new file mode 100644
index 000000000..767ef9fbd
--- /dev/null
+++ b/test/fixtures/library.d-minified/main/src/library/d/empty.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"empty.js","names":[],"sources":[],"mappings":"","ignoreList":[]}
\ No newline at end of file
diff --git a/test/fixtures/library.d/main/src/library/d/empty.js b/test/fixtures/library.d/main/src/library/d/empty.js
new file mode 100644
index 000000000..117426a83
--- /dev/null
+++ b/test/fixtures/library.d/main/src/library/d/empty.js
@@ -0,0 +1,3 @@
+/*!
+ * ${copyright}
+ */
diff --git a/test/lib/tasks/bundlers/generateLibraryPreload.integration.js b/test/lib/tasks/bundlers/generateLibraryPreload.integration.js
index 76394a1e4..873902922 100644
--- a/test/lib/tasks/bundlers/generateLibraryPreload.integration.js
+++ b/test/lib/tasks/bundlers/generateLibraryPreload.integration.js
@@ -52,7 +52,7 @@ test.serial("integration: build library.d with library preload", async (t) => {
 	assert.directoryDeepEqual(destPath, expectedPath);
 
 	// Check for all file contents
-	t.is(expectedFiles.length, 7, "7 files are expected");
+	t.is(expectedFiles.length, 8, "8 files are expected");
 	expectedFiles.forEach((expectedFile) => {
 		const relativeFile = path.relative(expectedPath, expectedFile);
 		const destFile = path.join(destPath, relativeFile);
@@ -105,7 +105,7 @@ test.serial("integration: build library.d-minified with library preload", async
 	assert.directoryDeepEqual(destPath, expectedPath);
 
 	// Check for all file contents
-	t.is(expectedFiles.length, 9, "9 files are expected");
+	t.is(expectedFiles.length, 11, "11 files are expected");
 	expectedFiles.forEach((expectedFile) => {
 		const relativeFile = path.relative(expectedPath, expectedFile);
 		const destFile = path.join(destPath, relativeFile);