diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d4635f3
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "grpc_bench"]
+	path = grpc_bench
+	url = https://github.com/Lesnyrumcajs/grpc_bench.git
diff --git a/grpc_bench b/grpc_bench
new file mode 160000
index 0000000..c645de5
--- /dev/null
+++ b/grpc_bench
@@ -0,0 +1 @@
+Subproject commit c645de58554dc6a808886e349115ea7f350a1829