diff --git a/chrome/skin/default/zotero/integration.css b/chrome/skin/default/zotero/integration.css
index 713b63c206..fd8672c5ed 100644
--- a/chrome/skin/default/zotero/integration.css
+++ b/chrome/skin/default/zotero/integration.css
@@ -181,7 +181,7 @@
 }
 
 richlistitem[selected="true"] {
-	background: Highlight;
+	background: Highlight !important;
 	color: HighlightText;
 }