diff --git a/zed/languages/rust/highlights.scm b/zed/languages/rust/highlights.scm
index 3276182cd6..116be75842 100644
--- a/zed/languages/rust/highlights.scm
+++ b/zed/languages/rust/highlights.scm
@@ -32,7 +32,7 @@
 
 ; Assume all-caps names are constants
 ((identifier) @constant
- (#match? @constant "^[A-Z][A-Z\\d_]+$'"))
+ (#match? @constant "^[A-Z][A-Z\\d_]+$"))
 
 [
   "as"