diff --git a/.gitmodules b/.gitmodules
index f8859f98..64d66a4b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -3,4 +3,4 @@
 	url = git://github.com/michael/data.git
 [submodule "src/visualizations/linechart"]
 	path = src/visualizations/linechart
-	url = git@github.com:michael/linechart.git
+	url = git://github.com/michael/linechart.git