diff --git a/include/d/d_menu_option.h b/include/d/d_menu_option.h
index e48347737..f56b9fb4e 100644
--- a/include/d/d_menu_option.h
+++ b/include/d/d_menu_option.h
@@ -114,7 +114,7 @@ public:
     dMo_HIO_c();
     virtual ~dMo_HIO_c() {}
 
-    void genMessage(JORMContext* ctx);
+    void genMessage(JORMContext* ctx) {}
 
 public:
     /* 0x04 */ s8 mNo;