diff --git a/userChrome.css b/userChrome.css
index a999701..241c044 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -18,7 +18,7 @@
 
   :root[uidensity=compact] {
     /* Tool Bar */
-    --toolbarbutton-outter-padding: 2px !important; /* Original: 3px, General is 2px */
+    --toolbarbutton-outer-padding: 2px !important; /* Original: 3px, General is 2px */
 
     /* Panel */
     --arrowpanel-menuitem-padding: 2px  !important; /* Original: 8px */