diff --git a/frontend/src/components/chat/MessageComposer/Attachment.tsx b/frontend/src/components/chat/MessageComposer/Attachment.tsx
index d5087044e2..c4889fb304 100644
--- a/frontend/src/components/chat/MessageComposer/Attachment.tsx
+++ b/frontend/src/components/chat/MessageComposer/Attachment.tsx
@@ -22,7 +22,7 @@ const Attachment: React.FC<AttachmentProps> = ({
   children,
   file
 }) => {
-  const isImage = useMemo(() => mime.startsWith('image/'), [mime]);
+  const isImage = useMemo(() => mime.startsWith('image/') || false, [mime]);
   const imageUrl = useMemo(() => {
     if (isImage && file) {
       return URL.createObjectURL(file);