diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index b45a7c0..b7a4a87 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1106,7 +1106,9 @@
 	}
 
 	rt->u.dst.obsolete = -1;
-	rt->rt6i_expires = jiffies + clock_t_to_jiffies(cfg->fc_expires);
+	rt->rt6i_expires = (cfg->fc_flags & RTF_EXPIRES) ?
+				jiffies + clock_t_to_jiffies(cfg->fc_expires) :
+				0;
 
 	if (cfg->fc_protocol == RTPROT_UNSPEC)
 		cfg->fc_protocol = RTPROT_BOOT;