diff --git a/scripts/pump.py b/scripts/pump.py
index 89ed9aa..ff39ffe 100644
--- a/scripts/pump.py
+++ b/scripts/pump.py
@@ -15,7 +15,7 @@ action = str(sys.argv[3])
 
 kit = MotorKit()
 
-pump_stepper = kit.stepper2
+pump_stepper = kit.stepper1
 
 pump_stepper.release()