diff --git a/userChrome.css b/userChrome.css
index 1a84ca9..c1f5be5 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -400,7 +400,7 @@
   .syncNowBtn {
     visibility: visible !important;
     -moz-box-ordinal-group: 1 !important;
-    margin-inline-end: var(--arrowpanel-menuitem-padding);
+    margin-inline-end: var(--arrowpanel-menuicon-padding);
   }
   #PanelUI-fxa-menu-setup-sync-button {
     list-style-image: url(chrome://browser/skin/sync.svg);