diff --git a/grpc_client/grpc_client.py b/grpc_client/grpc_client.py
index f0c5f11..f00b06e 100644
--- a/grpc_client/grpc_client.py
+++ b/grpc_client/grpc_client.py
@@ -59,6 +59,8 @@
         self.credentials = credentials
         self.restart_on_disconnect = restart_on_disconnect
 
+        self.google_api_dir = os.path.abspath(os.path.join(
+            os.path.dirname(__file__), '../protos'))
         self.plugin_dir = os.path.abspath(os.path.join(
             os.path.dirname(__file__), '../protoc_plugins'))
 
@@ -249,7 +251,7 @@
                 'cd %s && '
                 'env PATH=%s PYTHONPATH=%s '
                 'python -m grpc.tools.protoc '
-                '-I. '
+                '-I. -I %s '
                 '--python_out=. '
                 '--grpc_python_out=. '
                 '--plugin=protoc-gen-gw=%s/gw_gen.py '
@@ -260,6 +262,7 @@
                     self.work_dir,
                     ':'.join([os.environ['PATH'], self.plugin_dir]),
                     chameleon_base_dir,
+                    self.google_api_dir,
                     self.plugin_dir,
                     self.plugin_dir,
                     '--swagger_out=. ' if need_swagger else '',