diff --git a/Tests/large_memory_numpy_test.py b/Tests/large_memory_numpy_test.py
index 159d767d6..5e5a58441 100644
--- a/Tests/large_memory_numpy_test.py
+++ b/Tests/large_memory_numpy_test.py
@@ -14,7 +14,7 @@ from PIL import Image
 try:
     import numpy as np
 except:
-    sys.exit("Skipping: Numpy not installed")
+    raise unittest.SkipTest("numpy not installed")
 
 YDIM = 32769
 XDIM = 48000