diff --git a/.travis.yml b/.travis.yml
index 69cd7c720dffc742458dba0bb432794b160026e4..7f181a905b9ae093bc183890ac3ef0b167fd0cdf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ python:
   - '3.6'
 
 script:
-  - if [[ $TRAVIS_PYTHON_VERSION != 2.7 ]]; then /bin/bash ./scripts/check_code_style.sh; fi
+  - if [[ $TRAVIS_PYTHON_VERSION != 2.7 ]]; then /bin/bash ./tools/check_code_style.sh; fi
 
 notifications:
   email:
diff --git a/scripts/check_code_style.sh b/tools/check_code_style.sh
similarity index 100%
rename from scripts/check_code_style.sh
rename to tools/check_code_style.sh
diff --git a/x2paddle/__init__.py b/x2paddle/__init__.py
index 98a433b31058a4c8166312666d91533a8e53e50a..3d187266f146fb216a04537da37dc5df0811acc4 100644
--- a/x2paddle/__init__.py
+++ b/x2paddle/__init__.py
@@ -1 +1 @@
-__version__ = "0.4.5"
+__version__ = "0.5.0"
diff --git a/x2paddle/op_mapper/caffe_op_mapper.py b/x2paddle/op_mapper/caffe_op_mapper.py
index 1d451639e7063b72b888ecf913c9d2be9cc8bb3e..3e3f249f2e75ace83876d5154aa1f9a034f1b668 100644
--- a/x2paddle/op_mapper/caffe_op_mapper.py
+++ b/x2paddle/op_mapper/caffe_op_mapper.py
@@ -954,6 +954,13 @@ class CaffeOpMapper(OpMapper):
         inputs_node = []
         for i in range(len(node.inputs)):
             input = self.graph.get_bottom_node(node, idx=i, copy=True)
+            if i == 1 and op == 'DetectionOutput':
+                input = self.graph.get_bottom_node(node, idx=i, copy=True)
+                print(input.layer_type)
+                while input is not None and input.layer_type != 'Softmax':
+                    input = self.graph.get_bottom_node(input, idx=0, copy=True)
+                assert input is not None, 'This kind of DetectionOutput is not supported!'
+                input = self.graph.get_bottom_node(input, idx=0, copy=True)
             inputs_node.append(input)
         node.fluid_code.add_layer(func.__code__.co_name,
                                   inputs=inputs_node,