diff --git a/x2paddle/__init__.py b/x2paddle/__init__.py
index 1e963372fdc9e65d75c1abc788b08c179f9965df..5b80bf179120ff08852f52333a336db9c9afbb77 100644
--- a/x2paddle/__init__.py
+++ b/x2paddle/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.8.1"
+__version__ = "0.8.4"
 
 from .core.program import PaddleProgram
 
diff --git a/x2paddle/op_mapper/caffe_op_mapper.py b/x2paddle/op_mapper/caffe_op_mapper.py
index 17797ed01a0783af14a46edcb96a7a6a29f5911e..1ec79dd8ec6a264f8b47daa5e300ac1191c4ce98 100644
--- a/x2paddle/op_mapper/caffe_op_mapper.py
+++ b/x2paddle/op_mapper/caffe_op_mapper.py
@@ -226,7 +226,7 @@ class CaffeOpMapper(OpMapper):
             data.append(
                 np.zeros([output_c, input_c, kernel[0], kernel[1]]).astype(
                     'float32'))
-            data.append(np.zeros([output_c, ])).astype('float32')
+            data.append(np.zeros([output_c, ]).astype('float32'))
         else:
             data = self.adjust_parameters(node)
         self.weights[node.layer_name + '_weights'] = data[0]