diff --git a/site/examples/mentions.tsx b/site/examples/mentions.tsx
index d336f50d7..c95f06c7e 100644
--- a/site/examples/mentions.tsx
+++ b/site/examples/mentions.tsx
@@ -31,7 +31,7 @@ const MentionExample = () => {
 
   const onKeyDown = useCallback(
     event => {
-      if (target) {
+      if (target && chars.length > 0) {
         switch (event.key) {
           case 'ArrowDown':
             event.preventDefault()