diff --git a/lib/module.js b/lib/module.js
index 4c567ec2b9..921a57a814 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -436,7 +436,7 @@ Module._load = function(request, parent, isMain) {
           ESMLoader.hook(hooks);
         }
       }
-      await ESMLoader.import(getURLFromFilePath(request).href);
+      await ESMLoader.import(getURLFromFilePath(request).pathname);
     })()
     .catch((e) => {
       console.error(e);
diff --git a/test/parallel/test-module-main-extension-lookup.js b/test/parallel/test-module-main-extension-lookup.js
new file mode 100644
index 0000000000..0a8cc47c77
--- /dev/null
+++ b/test/parallel/test-module-main-extension-lookup.js
@@ -0,0 +1,7 @@
+'use strict';
+require('../common');
+const { execFileSync } = require('child_process');
+
+const node = process.argv[0];
+
+execFileSync(node, ['--experimental-modules', 'test/es-module/test-esm-ok']);