diff --git a/motors.scad b/motors.scad
index 52b7b18..dba1cb2 100644
--- a/motors.scad
+++ b/motors.scad
@@ -77,7 +77,7 @@ module geared_motor_mount_pad (pos = [0, 0, 0], D, Z) {
 	}
 }
 
-module geared_motor_mounts (pos = [0, 0, 0], MountX, MountY) {
+module geared_motor_mounts (pos = [0, 0, 0]) {
 	MountX = GearedMotorMountX / 2;
 	MountY = GearedMotorMountY / 2;
 	Z = 1.5;