diff --git a/app/glossary/glossary-client.tsx b/app/glossary/glossary-client.tsx
index 27d20964..dec22615 100644
--- a/app/glossary/glossary-client.tsx
+++ b/app/glossary/glossary-client.tsx
@@ -208,7 +208,7 @@ export function GlossaryClient({ data }: { data: GlossaryData }) {
             className="scroll-mt-40"
           >
             {/* Letter heading */}
-            <div className="sticky top-[84px] z-[5] bg-background py-2 border-b border-border mb-3">
+            <div className="sticky top-[88px] md:top-[84px] z-5 bg-background py-2 border-b border-border mb-3">
               <Badge variant="secondary" className="text-base px-3 py-0.5">
                 {letter}
               </Badge>