diff --git a/Input/Joysticks/Boeder/p20_flightstick_pro_usb.xml b/Input/Joysticks/Boeder/p20_flightstick_pro_usb.xml
index 4e8478609..64a7878bb 100644
--- a/Input/Joysticks/Boeder/p20_flightstick_pro_usb.xml
+++ b/Input/Joysticks/Boeder/p20_flightstick_pro_usb.xml
@@ -81,7 +81,7 @@ $Id$
   <desc>Throttle</desc>
   <binding>
    <command>nasal</command>
-   <property>controls.throttleAxis()</property>
+   <script>controls.throttleAxis()</script>
   </binding>
  </axis>