diff --git a/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintActivity.java b/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintActivity.java
index b54769a..0343d21 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintActivity.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintActivity.java
@@ -60,4 +60,9 @@
         paintCanvas.setPaintViewModel(paintViewModel);
     }
     //-----------------------------------------------------------------
+    @Override
+    public void onDestroy(){
+        super.onDestroy();
+        paintViewModel.stop();
+    }
 }
\ No newline at end of file