diff --git a/spec/libsass-todo-issues/issue_2140/expected_output.css b/spec/libsass-todo-issues/issue_2140/expected_output.css
new file mode 100644
index 0000000000..14a1019964
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_2140/expected_output.css
@@ -0,0 +1,17 @@
+:root {
+  --teal: #444; }
+
+a {
+  content: var(--teal); }
+
+b {
+  content: -red; }
+
+c {
+  content: +-blue; }
+
+d {
+  content: -green; }
+
+e {
+  content: +yellow; }
diff --git a/spec/libsass-todo-issues/issue_2140/input.scss b/spec/libsass-todo-issues/issue_2140/input.scss
new file mode 100644
index 0000000000..1b9085098d
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_2140/input.scss
@@ -0,0 +1,9 @@
+:root {
+  --teal: #444;
+}
+
+a { content: var(--teal) }
+b { content: (- red) }
+c { content: (+- blue) }
+d { content: (-green) }
+e { content: (+ yellow) }