diff --git a/Tests/test_file_icns.py b/Tests/test_file_icns.py
index 230a3e9b9..67eb1335f 100644
--- a/Tests/test_file_icns.py
+++ b/Tests/test_file_icns.py
@@ -27,10 +27,10 @@ class TestFileIcns(PillowTestCase):
     def test_save(self):
         im = Image.open(TEST_FILE)
 
-        TEST_FILE = self.tempfile("temp.icns")
-        im.save(TEST_FILE)
+        temp_file = self.tempfile("temp.icns")
+        im.save(temp_file)
 
-        reread = Image.open(TEST_FILE)
+        reread = Image.open(temp_file)
 
         self.assertEqual(reread.mode, "RGBA")
         self.assertEqual(reread.size, (1024, 1024))