diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..16c5a16
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "pkgs/winum"]
+	path = pkgs/winum
+	url = git@git.tokinanpa.dev:toki/emacs-winum