diff --git a/sbin/ping6/ping6.c b/sbin/ping6/ping6.c
index 9f43a232d9f..c8f3ba83f2c 100644
--- a/sbin/ping6/ping6.c
+++ b/sbin/ping6/ping6.c
@@ -1474,7 +1474,7 @@ pr_pack(buf, cc, mhdr)
 				    sizeof(dstsa)));
 			}
 			if (timing)
-				(void)printf(" time=%g ms", triptime);
+				(void)printf(" time=%.3f ms", triptime);
 			if (dupflag)
 				(void)printf("(DUP!)");
 			/* check the data */
diff --git a/usr.sbin/traceroute6/traceroute6.c b/usr.sbin/traceroute6/traceroute6.c
index da3ff1cdf95..8b93a847740 100644
--- a/usr.sbin/traceroute6/traceroute6.c
+++ b/usr.sbin/traceroute6/traceroute6.c
@@ -867,7 +867,7 @@ main(argc, argv)
 						print(&rcvmhdr, cc);
 						lastaddr = Rcv.sin6_addr;
 					}
-					Printf("  %g ms", deltaT(&t1, &t2));
+					Printf("  %.3f ms", deltaT(&t1, &t2));
 					switch(i - 1) {
 					case ICMP6_DST_UNREACH_NOROUTE:
 						++unreachable;