diff --git a/paddle/trainer/MergeModel.cpp b/paddle/trainer/MergeModel.cpp
index f3cfd9f97fea837e8f666f2eabee5a75659a4e42..56c38015fb2398f8b39fac6b5a5d4af1c2fd56aa 100644
--- a/paddle/trainer/MergeModel.cpp
+++ b/paddle/trainer/MergeModel.cpp
@@ -27,6 +27,9 @@ using namespace paddle;  // NOLINT
 using namespace std;     // NOLINT
 
 int main(int argc, char** argv) {
+  initMain(argc, argv);
+  initPython(argc, argv);
+
   if (FLAGS_model_dir.empty() || FLAGS_config_file.empty() ||
       FLAGS_model_file.empty()) {
     LOG(INFO) << "Usage: ./paddle_merge_model --model_dir=pass-00000 "
@@ -34,9 +37,6 @@ int main(int argc, char** argv) {
     return 0;
   }
 
-  initMain(argc, argv);
-  initPython(argc, argv);
-
   string confFile = FLAGS_config_file;
 #ifndef PADDLE_WITH_CUDA
   FLAGS_use_gpu = false;