diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index f9895180f4818cf73f55bd1183c07dfbf852477e..4d50daab0c3e7824dcf2fc35637ee36d1c031c7c 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -501,8 +501,8 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 			if (skb->sk) {
 				frag->sk = skb->sk;
 				frag->destructor = sock_wfree;
-				truesizes += frag->truesize;
 			}
+			truesizes += frag->truesize;
 		}
 
 		/* Everything is OK. Generate! */