diff --git a/sys/net/if_stf.c b/sys/net/if_stf.c
index 2f53c446c5c..dfb9aeade14 100644
--- a/sys/net/if_stf.c
+++ b/sys/net/if_stf.c
@@ -607,10 +607,10 @@ stf_checkaddr4(sc, in, inifp)
 			    (u_int32_t)ntohl(sin.sin_addr.s_addr));
 #endif
 			if (rt)
-				rtfree(rt);
+				RTFREE_LOCKED(rt);
 			return -1;
 		}
-		rtfree(rt);
+		RTFREE_LOCKED(rt);
 	}
 
 	return 0;
diff --git a/sys/netinet/in_gif.c b/sys/netinet/in_gif.c
index e70a6f8799f..33631058f7c 100644
--- a/sys/netinet/in_gif.c
+++ b/sys/netinet/in_gif.c
@@ -374,10 +374,10 @@ gif_validate4(const struct ip *ip, struct gif_softc *sc, struct ifnet *ifp)
 			    (u_int32_t)ntohl(sin.sin_addr.s_addr));
 #endif
 			if (rt)
-				rtfree(rt);
+				RTFREE_LOCKED(rt);
 			return 0;
 		}
-		rtfree(rt);
+		RTFREE_LOCKED(rt);
 	}
 
 	return 32 * 2;