diff --git a/Tests/test_image_paste.py b/Tests/test_image_paste.py
index fd117f9dbc9..25aa3751ef5 100644
--- a/Tests/test_image_paste.py
+++ b/Tests/test_image_paste.py
@@ -8,7 +8,6 @@
 
 
 class TestImagingPaste:
-    masks = {}
     size = 128
 
     def assert_9points_image(self, im, expected):