diff --git a/src/zen/compact-mode/windows-captions-fix-default.inc.css b/src/zen/compact-mode/windows-captions-fix-default.inc.css
index e649c990e..4b2ecfa22 100644
--- a/src/zen/compact-mode/windows-captions-fix-default.inc.css
+++ b/src/zen/compact-mode/windows-captions-fix-default.inc.css
@@ -11,4 +11,9 @@
    * web content */
   transition: max-height 0s;
   transition-delay: calc(var(--zen-hidden-toolbar-transition-duration) + 0.2s);
+
+  & .titlebar-button {
+    padding-top: 0 !important;
+    padding-bottom: 0 !important;
+  }
 }
diff --git a/src/zen/tabs/zen-tabs/vertical-tabs-topbar.inc.css b/src/zen/tabs/zen-tabs/vertical-tabs-topbar.inc.css
index 1ceac456b..ee1867037 100644
--- a/src/zen/tabs/zen-tabs/vertical-tabs-topbar.inc.css
+++ b/src/zen/tabs/zen-tabs/vertical-tabs-topbar.inc.css
@@ -30,11 +30,6 @@ z-index: 1;
     }
 
 %include ../../compact-mode/windows-captions-fix-default.inc.css
-
-    & .titlebar-button {
-      padding-top: 0 !important;
-      padding-bottom: 0 !important;
-    }
   }
 
   @media -moz-pref('zen.view.experimental-no-window-controls') {