diff --git a/sys/net/if_arcsubr.c b/sys/net/if_arcsubr.c
index d9a6cab129e7..46fbf5b6232d 100644
--- a/sys/net/if_arcsubr.c
+++ b/sys/net/if_arcsubr.c
@@ -103,7 +103,9 @@ arc_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
 	u_int8_t		atype, adst;
 	int			loop_copy = 0;
 	int			isphds;
+#ifdef INET
 	int			is_gw;
+#endif
 
 	if (!((ifp->if_flags & IFF_UP) &&
 	    (ifp->if_drv_flags & IFF_DRV_RUNNING)))
diff --git a/sys/net/if_fddisubr.c b/sys/net/if_fddisubr.c
index 91b26e538dd8..9066c0d3cd63 100644
--- a/sys/net/if_fddisubr.c
+++ b/sys/net/if_fddisubr.c
@@ -101,7 +101,9 @@ fddi_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
 	int loop_copy = 0, error = 0, hdrcmplt = 0;
  	u_char esrc[FDDI_ADDR_LEN], edst[FDDI_ADDR_LEN];
 	struct fddi_header *fh;
+#ifdef INET
 	int is_gw;
+#endif
 
 #ifdef MAC
 	error = mac_ifnet_check_transmit(ifp, m);
diff --git a/sys/net/if_fwsubr.c b/sys/net/if_fwsubr.c
index fd4851ed621b..5bb12f9ee3aa 100644
--- a/sys/net/if_fwsubr.c
+++ b/sys/net/if_fwsubr.c
@@ -89,7 +89,9 @@ firewire_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
 	struct mbuf *mtail;
 	int unicast, dgl, foff;
 	static int next_dgl;
+#ifdef INET
 	int is_gw;
+#endif
 
 #ifdef MAC
 	error = mac_ifnet_check_transmit(ifp, m);