diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..bf650ca
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "nginx-config-formatter"]
+	path = nginx-config-formatter
+	url = https://github.com/slomkowski/nginx-config-formatter