diff --git a/.gitmodules b/.gitmodules
index 295ed3b37fc8ff4b3674422af3b799f3041f45ed..3f1cb3e31f5ff75ccc1292eada306c6bcc551630 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,4 +4,4 @@
 	branch = station-control
 [submodule "tangostationcontrol/tangostationcontrol/toolkit/libhdbpp-python"]
 	path = tangostationcontrol/tangostationcontrol/toolkit/libhdbpp-python
-	url = https://gitlab.com/tango-controls/hdbpp/libhdbpp-python
+	url = https://gitlab.com/tango-controls/hdbpp/libhdbpp-python.git