diff --git a/src/components/Menu2dCA.vue b/src/components/Menu2dCA.vue
index 2aa8ee5..7a3ca06 100644
--- a/src/components/Menu2dCA.vue
+++ b/src/components/Menu2dCA.vue
@@ -52,7 +52,7 @@
           const reader = new FileReader();
 
           reader.onload = () => {
-            this.picture.src = reader.result;
+            this.picture.src = Object.freeze(reader.result);
             this.toggle2dDrawFromPicture();
           };