diff --git a/klippy/kinematics/cartesian.py b/klippy/kinematics/cartesian.py
index 9cbd393d..df57edce 100644
--- a/klippy/kinematics/cartesian.py
+++ b/klippy/kinematics/cartesian.py
@@ -135,9 +135,9 @@ class CartKinematics:
         if self.limits[dc_axis][0] <= self.limits[dc_axis][1]:
             self.limits[dc_axis] = dc_rail.get_range()
     cmd_SET_DUAL_CARRIAGE_help = "Set which carriage is active"
-    def cmd_SET_DUAL_CARRIAGE(self, params):
+    def cmd_SET_DUAL_CARRIAGE(self, gcmd):
         gcode = self.printer.lookup_object('gcode')
-        carriage = gcode.get_int('CARRIAGE', params, minval=0, maxval=1)
+        carriage = gcmd.get_int('CARRIAGE', minval=0, maxval=1)
         self._activate_carriage(carriage)
         gcode.reset_last_position()