diff --git a/frontend/src/pages/Editor.tsx b/frontend/src/pages/Editor.tsx
index b5387ca..a1b2eb6 100644
--- a/frontend/src/pages/Editor.tsx
+++ b/frontend/src/pages/Editor.tsx
@@ -73,7 +73,7 @@ export default function Editor() {
 
     // replace image src with encrypted image filename
     const canvasData = canvasRef.current?.getData();
-    canvasData.objects = canvasData.objects?.map(
+    canvasData?.objects?.map(
       (
         obj: Record<string, unknown>, // fabric is too quirky for any other type
       ) =>