diff --git a/tools/eval.py b/tools/eval.py
index 2e43c52d1978de96ad9eea65104af01ebc1f654c..d6bd82c0ae6fc33bbbfeb42808588cb6e505fe31 100644
--- a/tools/eval.py
+++ b/tools/eval.py
@@ -12,6 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from paddle.distributed import ParallelEnv
+import paddle
+from ppcls.utils import logger
+from ppcls.utils.save_load import init_model
+from ppcls.utils.config import get_config
+from ppcls.data import Reader
+import program
 import argparse
 import os
 import sys
@@ -19,14 +26,6 @@ __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(__dir__)
 sys.path.append(os.path.abspath(os.path.join(__dir__, '..')))
 
-import program
-from ppcls.data import Reader
-from ppcls.utils.config import get_config
-from ppcls.utils.save_load import init_model
-from ppcls.utils import logger
-
-import paddle
-from paddle.distributed import ParallelEnv
 
 def parse_args():
     parser = argparse.ArgumentParser("PaddleClas eval script")
@@ -66,7 +65,8 @@ def main(args):
     valid_reader = Reader(config, 'valid')()
     valid_dataloader.set_sample_list_generator(valid_reader, place)
     net.eval()
-    top1_acc = program.run(valid_dataloader, config, net, None, 0, 'valid')
+    top1_acc = program.run(valid_dataloader, config, net, None, None, 0,
+                           'valid')
 
 
 if __name__ == '__main__':