diff --git a/include/core/include/fsm.h b/include/core/include/fsm.h
index a909b48..4b7b8bb 100644
--- a/include/core/include/fsm.h
+++ b/include/core/include/fsm.h
@@ -227,7 +227,7 @@ extern NINT fsmKick();
 {															\
 	FsmLite_s	*Fsm = (FsmLite_s *)(_f);					\
 															\
-	Fsm->action = (_action);								\
+	Fsm->action = (voidfunc_t)(_action);					\
 	zASSERT(Fsm->action != NULL);							\
 	FSM_ENQ(Fsm);											\
 }