diff --git a/sbin/route/route.c b/sbin/route/route.c
index 2d470e14bc28..107c66fa67ce 100644
--- a/sbin/route/route.c
+++ b/sbin/route/route.c
@@ -1632,6 +1632,7 @@ print_rtmsg(struct rt_msghdr *rtm, size_t msglen)
 			break;
 		}
 		printf("\n");
+		fflush(stdout);
 		break;
 
 	default: