diff --git a/.gitmodules b/.gitmodules
index dbc0fce..29ede68 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,6 @@
 [submodule "simgear"]
 	path = simgear
-	url = http://git.gitorious.org/fg/simgear.git
+	url = git://gitorious.org/fg/simgear.git
 [submodule "flightgear"]
 	path = flightgear
-	url = http://git.gitorious.org/fg/flightgear.git
+	url = git://gitorious.org/fg/flightgear.git