diff --git a/frontend/src/preview/PdfViewer.tsx b/frontend/src/preview/PdfViewer.tsx
index 97c7e81..1beec7a 100644
--- a/frontend/src/preview/PdfViewer.tsx
+++ b/frontend/src/preview/PdfViewer.tsx
@@ -550,7 +550,7 @@ const PdfViewer = ({ src, title, className, viewportRef }: PdfViewerProps): JSX.
         scrollElementRef.current = null;
       }
     };
-  }, [handlePageVisibilityChange, intersectionRoot, updateScrollVelocityState, viewportRef]);
+  }, [handlePageVisibilityChange, intersectionRoot, updateScrollVelocityState, viewMode, viewportRef]);
 
   const pageElements = useMemo(() => (
     pages.map((page) => (