diff --git a/.gitmodules b/.gitmodules
index c983e44..d0ad4e0 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -19,3 +19,6 @@
 [submodule "robinmap"]
 	path = lib/robin-map
 	url = https://github.com/FuexFollets/robin-map.git
+[submodule "lib/google-benchmark"]
+	path = lib/benchmark
+	url = https://github.com/google/benchmark.git
diff --git a/lib/benchmark b/lib/benchmark
new file mode 160000
index 0000000..4682db0
--- /dev/null
+++ b/lib/benchmark
@@ -0,0 +1 @@
+Subproject commit 4682db08bc7bb7e547e0a1056e32392998f8101f