diff --git a/python/paddle/v2/dataset/conll05.py b/python/paddle/v2/dataset/conll05.py
index b6a4c252d12d7af02e445acde3a367a29229590e..7874161a05968921a8e6789a7ff6a229d6cc6c01 100644
--- a/python/paddle/v2/dataset/conll05.py
+++ b/python/paddle/v2/dataset/conll05.py
@@ -12,8 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-#import paddle.v2.dataset.common
-import common
+import paddle.v2.dataset.common
 import tarfile
 import gzip
 import itertools