diff --git a/.gitmodules b/.gitmodules
index 4553c29..cd4169f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "third_party/glm"]
 	path = third_party/glm
-	url = https://github.com/g-truc/glm.git
+	url = git@github.com:g-truc/glm.git