diff --git a/sys/net/vnet.h b/sys/net/vnet.h
--- a/sys/net/vnet.h
+++ b/sys/net/vnet.h
@@ -342,7 +342,7 @@
 	static struct vnet_sysinit ident ## _vnet_init = {		\
 		subsystem,						\
 		order,							\
-		(sysinit_cfunc_t)(sysinit_nfunc_t)func,			\
+		(sysinit_cfunc_t)func,					\
 		(arg)							\
 	};								\
 	SYSINIT(vnet_init_ ## ident, subsystem, order,			\
@@ -356,7 +356,7 @@
 	static struct vnet_sysinit ident ## _vnet_uninit = {		\
 		subsystem,						\
 		order,							\
-		(sysinit_cfunc_t)(sysinit_nfunc_t)func,			\
+		(sysinit_cfunc_t)func,					\
 		(arg)							\
 	};								\
 	SYSINIT(vnet_uninit_ ## ident, subsystem, order,		\