diff --git a/framework/core/js/src/forum/components/Post.tsx b/framework/core/js/src/forum/components/Post.tsx
index 381c47cdd..3f9304bb4 100644
--- a/framework/core/js/src/forum/components/Post.tsx
+++ b/framework/core/js/src/forum/components/Post.tsx
@@ -97,7 +97,7 @@ export default abstract class Post<CustomAttrs extends IPostAttrs = IPostAttrs>
     const $actions = this.$('.Post-actions');
     const $controls = this.$('.Post-controls');
 
-    $actions.toggleClass('open', $controls.hasClass('open'));
+    $actions.toggleClass('openWithin', $controls.hasClass('open'));
   }
 
   /**
diff --git a/framework/core/less/forum/Post.less b/framework/core/less/forum/Post.less
index 6fe81e884..6b36ea347 100644
--- a/framework/core/less/forum/Post.less
+++ b/framework/core/less/forum/Post.less
@@ -322,7 +322,7 @@
       vertical-align: top;
     }
   }
-  .Post:hover &, .Post:focus-within &, &.open {
+  .Post:hover &, .Post:focus-within &, &.openWithin {
     opacity: 1;
   }
 }