diff --git a/extensions/emoji/js/src/forum/addComposerAutocomplete.js b/extensions/emoji/js/src/forum/addComposerAutocomplete.js
index a6a1bf1d8..9cba1af64 100644
--- a/extensions/emoji/js/src/forum/addComposerAutocomplete.js
+++ b/extensions/emoji/js/src/forum/addComposerAutocomplete.js
@@ -148,7 +148,7 @@ export default function addComposerAutocomplete() {
             }
 
             // Prevent the dropdown from going off screen on mobile
-            top = Math.max(-parent.offset().top, top);
+            top = Math.max(-(parent.offset().top - $(document).scrollTop()), top);
             left = Math.max(-parent.offset().left, left);
 
             dropdown.show(left, top);