diff --git a/runtime/queries/protobuf/highlights.scm b/runtime/queries/protobuf/highlights.scm
index c35c430e3..6deee7df8 100644
--- a/runtime/queries/protobuf/highlights.scm
+++ b/runtime/queries/protobuf/highlights.scm
@@ -55,4 +55,12 @@
   "]"
   "{"
   "}"
-]  @punctuation.bracket
\ No newline at end of file
+] @punctuation.bracket
+
+[
+  "="
+] @operator
+
+[
+  ";"
+] @punctuation.delimiter