diff --git a/pyrevolve/build/sdf/motor.py b/pyrevolve/build/sdf/motor.py
index 6b8a38e641..90fa042bb7 100644
--- a/pyrevolve/build/sdf/motor.py
+++ b/pyrevolve/build/sdf/motor.py
@@ -166,7 +166,7 @@ def __init__(
                 joint=joint,
                 motor_type=motor_type,
                 x=x,
-                y=x
+                y=y
         )
         self.pid = PID() if pid is None else pid