diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e5caef6
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "googletest"]
+	path = googletest
+	url = https://git.chromium.org/git/external/googletest.git
diff --git a/googletest b/googletest
new file mode 160000
index 0000000..e9d7e5b
--- /dev/null
+++ b/googletest
@@ -0,0 +1 @@
+Subproject commit e9d7e5b7647da7931458cc8764bbcad47e30b0eb