diff --git a/.gitmodules b/.gitmodules
index a82150355cb711c4a1bc34eba043ed93a3717fde..f59f7d47900faa1e179023e59be02e79a6af0c7c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "avr8_smbus_battery_monitor"]
 	path = avr8_smbus_battery_monitor
-	url = https://gitlab.iri.upc.edu/labrobotica/firmware/avr8_smbus_battery_monitor.git
+	url = ../firmware/avr8_smbus_battery_monitor.git
 	branch = master