diff --git a/res/css/views/messages/_ReactionsRowButton.scss b/res/css/views/messages/_ReactionsRowButton.scss
index 7158ffc027..c132fa5a0f 100644
--- a/res/css/views/messages/_ReactionsRowButton.scss
+++ b/res/css/views/messages/_ReactionsRowButton.scss
@@ -34,6 +34,10 @@ limitations under the License.
         border-color: $reaction-row-button-selected-border-color;
     }
 
+    &.mx_AccessibleButton_disabled {
+        cursor: not-allowed;
+    }
+
     .mx_ReactionsRowButton_content {
         max-width: 100px;
         overflow: hidden;