diff --git a/ui/src/components/rects/RectPad.vue b/ui/src/components/rects/RectPad.vue
index 8a836ef..5856515 100644
--- a/ui/src/components/rects/RectPad.vue
+++ b/ui/src/components/rects/RectPad.vue
@@ -143,6 +143,10 @@ export default class RectPad extends Vue {
   }
 
   private remove_rect(event: MouseEvent) {
+    if (this.preview_visible) {
+      return;
+    }
+
     this.pop_rectangle(get_event_thous(event));
   }
 }