diff --git a/queries/c/highlights.scm b/queries/c/highlights.scm
index a27c38135..65aac5051 100644
--- a/queries/c/highlights.scm
+++ b/queries/c/highlights.scm
@@ -81,6 +81,8 @@
   "|="
   "&="
   "^="
+  ">>="
+  "<<="
   "--"
   "++"
 ] @operator