diff --git a/userChrome.css b/userChrome.css
index 77d668d..b6f97ce 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -662,7 +662,7 @@
       :root:not(:-moz-lwtheme),
       :root[lwt-default-theme-in-dark-mode] {
         --mac-field-bgcolor: Field;
-        --mac-panel-bgcolor: -moz-CellHiglight;
+        --mac-panel-bgcolor: -moz-CellHighlight;
         --mac-hover-bgcolor: ButtonFace;
 
         --toolbar-field-focus-background-color: var(--mac-bgcolor) !important;