diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 7b18401..546d2d4 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -200,6 +200,7 @@
 	}
 
 	skb_gro_pull(skb, sizeof(struct udphdr)); /* pull encapsulating udp header */
+	skb_gro_postpull_rcsum(skb, uh, sizeof(struct udphdr));
 	pp = uo_priv->offload->callbacks.gro_receive(head, skb);
 
 out_unlock: