diff --git a/motorApp/MotorSrc/paramLib.h b/motorApp/MotorSrc/paramLib.h
index 62ba378c..b5f1ad5b 100755
--- a/motorApp/MotorSrc/paramLib.h
+++ b/motorApp/MotorSrc/paramLib.h
@@ -23,6 +23,7 @@ typedef struct
   int  (*getDouble)   ( PARAMS params, paramIndex index, double * value );
   int  (*setCallback) ( PARAMS params, paramCallback callback, void * param );
   void (*dump)        ( PARAMS params );
+  void (*forceCallback)( PARAMS params );
 } paramSupport;
 
 extern paramSupport * motorParam;