diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index e6a2974e020e1a4232d94e6c2933eebff5f8acb4..8f2762bba879def9e7a37bebbff8d120cfb5157f 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -1680,8 +1680,8 @@ static int sctp_cmd_interpreter(enum sctp_event event_type,
 		case SCTP_CMD_PROCESS_CTSN:
 			/* Dummy up a SACK for processing. */
 			sackh.cum_tsn_ack = cmd->obj.be32;
-			sackh.a_rwnd = asoc->peer.rwnd +
-					asoc->outqueue.outstanding_bytes;
+			sackh.a_rwnd = htonl(asoc->peer.rwnd +
+					     asoc->outqueue.outstanding_bytes);
 			sackh.num_gap_ack_blocks = 0;
 			sackh.num_dup_tsns = 0;
 			chunk->subh.sack_hdr = &sackh;