diff --git a/.gitmodules b/.gitmodules
index 6024ef3..bc55315 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "doctool"]
 	path = doctool
-	url = git@github.com:vrld/doctool.git
+	url = git://github.com/vrld/doctool.git