diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000000..b142379e88
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,4 @@
+.PHONY: git-submodule
+git-submodule:
+	git submodule sync --recursive
+	git submodule update --init --recursive --progress