diff --git a/tests/loop.py b/tests/loop.py
index 2d4ef0b..0bb9bb9 100755
--- a/tests/loop.py
+++ b/tests/loop.py
@@ -11,9 +11,9 @@ def waitMouseClick():
 
 while True:
     os.system("killall fim")
-    os.system("fim -qa image1.png &")
+    os.system("fim -qa image1.png 2>/dev/null &")
     waitMouseClick()
     os.system("killall fim")
-    os.system("fim -qa image2.png &")
+    os.system("fim -qa image2.png 2>/dev/null &")
     waitMouseClick()