diff --git a/queries/c/highlights.scm b/queries/c/highlights.scm
index 0d718c223..9f227ad65 100644
--- a/queries/c/highlights.scm
+++ b/queries/c/highlights.scm
@@ -48,6 +48,7 @@
 ">=" @operator
 "!" @operator
 "||" @operator
+"?" @operator
 
 "-=" @operator
 "+=" @operator