diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..de78e22
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "themes/hugo-theme-cleanwhite"]
+	path = themes/hugo-theme-cleanwhite
+	url = https://github.com/zhaohuabing/hugo-theme-cleanwhite.git
diff --git a/themes/hugo-theme-cleanwhite b/themes/hugo-theme-cleanwhite
new file mode 160000
index 0000000..f1266b5
--- /dev/null
+++ b/themes/hugo-theme-cleanwhite
@@ -0,0 +1 @@
+Subproject commit f1266b575eb8627c4dc310a672a06387484c1d2e