diff --git a/web/src/util.ts b/web/src/util.ts
index 3a235ab6c7..d7f47a7f17 100644
--- a/web/src/util.ts
+++ b/web/src/util.ts
@@ -195,11 +195,11 @@ export class CachedValue<T> {
 }
 
 export function find_stream_wildcard_mentions(message_content: string): string | null {
-    const mention = message_content.match(/(^|\s)(@\*{2}(all|everyone|stream)\*{2})($|\s)/);
+    const mention = message_content.match(/(?<![^\s"'(/<[{])(@\*{2}(all|everyone|stream)\*{2})/);
     if (mention === null) {
         return null;
     }
-    return mention[3];
+    return mention[2];
 }
 
 export const move_array_elements_to_front = function util_move_array_elements_to_front<T>(
diff --git a/web/tests/util.test.js b/web/tests/util.test.js
index 3781002211..357bd7d7df 100644
--- a/web/tests/util.test.js
+++ b/web/tests/util.test.js
@@ -168,6 +168,8 @@ run_test("wildcard_mentions_regexp", () => {
 
     const messages_with_everyone_mentions = [
         "@**everyone**",
+        '"@**everyone**"',
+        "@**everyone**: Look at this!",
         "some text before @**everyone** some text after",
         "@**everyone** some text after only",
         "some text before only @**everyone**",