diff --git a/.gitmodules b/.gitmodules
index 3432e43..60eb6bb 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -6,4 +6,4 @@
 	url = https://github.com/conorpp/python-fido2
 [submodule "crypto/micro-ecc"]
 	path = crypto/micro-ecc
-	url = https://github.com/kmackay/micro-ecc
+	url = https://github.com/kmackay/micro-ecc.git