diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 2f589f24c09397fa58cffe9d54ec866b02e78598..563b442ffab8fcabd26292199a340499cddd4fbb 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -666,7 +666,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 		 */
 		fh->nexthdr = nexthdr;
 		fh->reserved = 0;
-		if (frag_id) {
+		if (!frag_id) {
 			ipv6_select_ident(skb, fh);
 			frag_id = fh->identification;
 		} else