diff --git a/lib/libuinet/api_include/uinet_api.h b/lib/libuinet/api_include/uinet_api.h
index 6efce70..7dc6c89 100644
--- a/lib/libuinet/api_include/uinet_api.h
+++ b/lib/libuinet/api_include/uinet_api.h
@@ -116,7 +116,7 @@ void  uinet_soupcall_set_locked(struct uinet_socket *so, int which, int (*func)(
 void  uinet_soupcall_unlock(struct uinet_socket *so, int which);
 int   uinet_sysctlbyname(uinet_instance_t uinst, const char *name, char *oldp, size_t *oldplen,
 			 const char *newp, size_t newplen, size_t *retval, int flags);
-int   uinet_sysctl(uinet_instance_t uinst, const int *name, u_int namelen, void *oldp, size_t *oldplen,
+int   uinet_sysctl(uinet_instance_t uinst, const int *name, unsigned int namelen, void *oldp, size_t *oldplen,
 		   const void *newp, size_t newplen, size_t *retval, int flags);
 void  uinet_synfilter_getconninfo(uinet_api_synfilter_cookie_t cookie, struct uinet_in_conninfo *inc);
 void  uinet_synfilter_getl2info(uinet_api_synfilter_cookie_t cookie, struct uinet_in_l2info *l2i);
diff --git a/lib/libuinet/uinet_config.c b/lib/libuinet/uinet_config.c
index 5fbede0..1f6ac22 100644
--- a/lib/libuinet/uinet_config.c
+++ b/lib/libuinet/uinet_config.c
@@ -85,7 +85,7 @@ int
 uinet_ifcreate(uinet_instance_t uinst, uinet_iftype_t type, const char *configstr,
 	       const char *alias, unsigned int cdom, int cpu, uinet_if_t *uif)
 {
-	struct uinet_if *new_uif;
+	struct uinet_if *new_uif = 0;
 	int alias_len;
 	int error = 0;
 
diff --git a/lib/libuinet/uinet_internal.h b/lib/libuinet/uinet_internal.h
index bb139ba..3a0c780 100644
--- a/lib/libuinet/uinet_internal.h
+++ b/lib/libuinet/uinet_internal.h
@@ -30,10 +30,11 @@
 #include <sys/socket.h>
 
 #include <net/if.h>
-#include <net/vnet.h>
 
 #include "uinet_api.h"
 
+struct vnet;
+
 struct uinet_instance {
 	struct vnet *ui_vnet;
 	void *ui_userdata;