diff --git a/sys/sys/vimage.h b/sys/sys/vimage.h
index fd70bc467bd0..40d537e2f47b 100644
--- a/sys/sys/vimage.h
+++ b/sys/sys/vimage.h
@@ -224,6 +224,7 @@ void	vnet_mod_register(const struct vnet_modinfo *);
  * But as CTASSERT_EQUAL() needs special compile time options, we
  * want the default case to be backed by CTASSERT().
  */
+#if 0
 #ifndef VIMAGE_CTASSERT
 #ifdef VIMAGE_CHECK_SIZES
 #define	VIMAGE_CTASSERT(x, y)						\
@@ -234,5 +235,8 @@ void	vnet_mod_register(const struct vnet_modinfo *);
 	CTASSERT(x == 0 || x == y)
 #endif
 #endif
+#else
+#define	VIMAGE_CTASSERT(x, y)		struct __hack
+#endif
 
 #endif /* !_SYS_VIMAGE_H_ */