diff --git a/tools/convert_tool/CMakeLists.txt b/tools/convert_tool/CMakeLists.txt
index ab028141b..3a82d9d23 100644
--- a/tools/convert_tool/CMakeLists.txt
+++ b/tools/convert_tool/CMakeLists.txt
@@ -40,6 +40,7 @@ file(GLOB_RECURSE TF_SERIALIZER_SRCS "${CMAKE_CURRENT_SOURCE_DIR}/tensorflow/*.c
 
 list(APPEND TENGINE_LIB_SRCS ${serializer_src})
 
+
 # the generated pb.cc
 set(TF_PROTO_SRC            ${CMAKE_CURRENT_BINARY_DIR}/tensorflow/graph.pb.cc
                             ${CMAKE_CURRENT_BINARY_DIR}/tensorflow/function.pb.cc
@@ -76,21 +77,6 @@ include_directories(${TF_PROTO_OUT_PATH})
 
 list(APPEND TF_SERIALIZER_SRCS ${TF_PROTO_SRC})
 
-# the generated pb.cc
-protobuf_generate_cpp(TF_PROTO_SRCS TF_PROTO_HDRS 
-    tensorflow/graph.proto 
-    tensorflow/function.proto 
-    tensorflow/node_def.proto 
-    tensorflow/op_def.proto 
-    tensorflow/attr_value.proto
-    tensorflow/tensor.proto
-    tensorflow/tensor_shape.proto
-    tensorflow/types.proto
-    tensorflow/versions.proto
-    tensorflow/resource_handle.proto
-)
-list(APPEND TF_SERIALIZER_SRCS ${TF_PROTO_HDRS} ${TF_PROTO_SRCS})
-
 # MXNET
 file(GLOB_RECURSE MXNET_SERIALIZER_SRCS "${CMAKE_CURRENT_SOURCE_DIR}/mxnet/*.cpp")