diff --git a/.gitmodules b/.gitmodules
index e69de29..467fafe 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "src/benchmark"]
+	path = src/benchmark
+	url = https://github.com/google/benchmark.git
diff --git a/src/benchmark b/src/benchmark
new file mode 160000
index 0000000..7736df0
--- /dev/null
+++ b/src/benchmark
@@ -0,0 +1 @@
+Subproject commit 7736df03049c362c7275f7573de6d6a685630e0a