diff --git a/zed/languages/rust/highlights.scm b/zed/languages/rust/highlights.scm
index 3276182cd609760ed0869a2ce8eb9e396794a4d7..116be758424216869f66772a09b11b9ab90f9da1 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"