diff --git a/frontend/components/knowledge-filter-panel.tsx b/frontend/components/knowledge-filter-panel.tsx
index c132c3b2..9db1910f 100644
--- a/frontend/components/knowledge-filter-panel.tsx
+++ b/frontend/components/knowledge-filter-panel.tsx
@@ -232,7 +232,7 @@ export function KnowledgeFilterPanel() {
   };
 
   return (
-    <div className="fixed right-0 top-14 bottom-0 w-80 bg-background border-l border z-40 overflow-y-auto">
+    <div className="fixed right-0 top-14 bottom-0 w-80 bg-background border-l z-40 overflow-y-auto">
       <Card className="h-full rounded-none border-0 shadow-lg flex flex-col">
         <CardHeader className="pb-3">
           <div className="flex items-center justify-between">