diff --git a/.gitmodules b/.gitmodules
index cd321e8..77d0107 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "sync"]
 	path = sync
-	url = git@github.com:zhenkai/sync.git
+	url = git://github.com/zhenkai/sync.git