diff --git a/ui/app/mirrors/edit/[mirrorId]/cdc.tsx b/ui/app/mirrors/edit/[mirrorId]/cdc.tsx
index cdaf39248d..52d21c4999 100644
--- a/ui/app/mirrors/edit/[mirrorId]/cdc.tsx
+++ b/ui/app/mirrors/edit/[mirrorId]/cdc.tsx
@@ -289,7 +289,9 @@ export function CDCMirror({
 
   useEffect(() => {
     if (typeof window !== 'undefined') {
-      setSelectedTab(parseInt(localStorage?.getItem(LocalStorageTabKey)) | 0);
+      setSelectedTab(
+        parseInt(localStorage?.getItem(LocalStorageTabKey) ?? '0') | 0
+      );
     }
   }, []);