diff --git a/compiler/cpp/src/generate/t_go_generator.cc b/compiler/cpp/src/generate/t_go_generator.cc
index 6780fc5..b5e3db3 100644
--- a/compiler/cpp/src/generate/t_go_generator.cc
+++ b/compiler/cpp/src/generate/t_go_generator.cc
@@ -318,7 +318,7 @@
 
   for (sv_iter = services.begin(); sv_iter != services.end(); ++sv_iter) {
     string service_dir = package_dir_+"/"+(*sv_iter)->get_name();
-    mkdir(service_dir.c_str(), 0755);
+    mkdir(service_dir.c_str());
     string f_init_name = service_dir+"/Makefile";
     ofstream f_init;
     f_init.open(f_init_name.c_str());