diff --git a/python/paddle/v2/framework/tests/mnist.py b/python/paddle/v2/framework/tests/mnist.py
index 9b2dbed25c..a68f302f9c 100644
--- a/python/paddle/v2/framework/tests/mnist.py
+++ b/python/paddle/v2/framework/tests/mnist.py
@@ -223,7 +223,7 @@ def test(cost_name):
         sum(error) / float(len(error))))
 
 
-PASS_NUM = 10
+PASS_NUM = 1
 
 init_net.run(scope, dev_ctx)
 for pass_id in range(PASS_NUM):