diff --git a/python/paddle/v2/fluid/tests/book/test_recognize_digits_conv.py b/python/paddle/v2/fluid/tests/book/test_recognize_digits_conv.py
index 56284f6db43aab0d0abd59cd81ea82ba8c9fa9fe..a10530bd823b5265f850eedc05ca96fd9c7d7ff5 100644
--- a/python/paddle/v2/fluid/tests/book/test_recognize_digits_conv.py
+++ b/python/paddle/v2/fluid/tests/book/test_recognize_digits_conv.py
@@ -3,6 +3,7 @@ import paddle.v2.fluid.layers as layers
 import paddle.v2.fluid.nets as nets
 import paddle.v2.fluid.core as core
 import paddle.v2.fluid.optimizer as optimizer
+import paddle.v2.fluid.evaluator as evaluator
 
 from paddle.v2.fluid.framework import Program
 from paddle.v2.fluid.executor import Executor