diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c3aa68ce..70d9b5d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -682,7 +682,7 @@
 	skb->transport_header += off;
 	skb->network_header   += off;
 	skb->mac_header	      += off;
-	skb->csum_start       += off;
+	skb->csum_start       += nhead;
 	skb->cloned   = 0;
 	skb->hdr_len  = 0;
 	skb->nohdr    = 0;