diff --git a/usr.sbin/mrouted/main.c b/usr.sbin/mrouted/main.c
index 7ab3de8495f8..b3526d5934dc 100644
--- a/usr.sbin/mrouted/main.c
+++ b/usr.sbin/mrouted/main.c
@@ -532,7 +532,7 @@ main(argc, argv)
 		gettimeofday(&curtime, NULL);
 	    difftime.tv_sec = curtime.tv_sec - lasttime.tv_sec;
 	    difftime.tv_usec += curtime.tv_usec - lasttime.tv_usec;
-	    while (difftime.tv_usec > 1000000) {
+	    while (difftime.tv_usec >= 1000000) {
 		difftime.tv_sec++;
 		difftime.tv_usec -= 1000000;
 	    }
diff --git a/usr.sbin/mrouted/mtrace.c b/usr.sbin/mrouted/mtrace.c
index 2ddf4f9e88a5..66df8e284d32 100644
--- a/usr.sbin/mrouted/mtrace.c
+++ b/usr.sbin/mrouted/mtrace.c
@@ -1955,7 +1955,7 @@ stat_line(r, s, have_next, rst)
 	v_out = ntohl(s->tr_vifin) - ntohl(r->tr_vifin);
 	v_pps = v_out / timediff;
 	whochar = 'v';
-	/* Fall through */
+	/* FALLTHROUGH */
 
       case OUTS:
 	if (tunstats)
@@ -2005,7 +2005,7 @@ stat_line(r, s, have_next, rst)
 	g_out = ntohl(s->tr_pktcnt) - ntohl(r->tr_pktcnt);
 	g_pps = g_out / timediff;
 	whochar = 'v';
-	/* Fall through */
+	/* FALLTHROUGH */
 #endif
 
       case OUTS: