1 files changed, 3 insertions, 2 deletions

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index e0f01a4e8cd6..e1c5fc2be6b8 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -804,10 +804,11 @@ struct sctp_chunk *sctp_make_sack(const struct sctp_association *asoc)
                                  gabs);
 
         /* Add the duplicate TSN information.  */
-        if (num_dup_tsns)
+        if (num_dup_tsns) {
+                aptr->stats.idupchunks += num_dup_tsns;
                 sctp_addto_chunk(retval, sizeof(__u32) * num_dup_tsns,
                                  sctp_tsnmap_get_dups(map));
-
+        }
         /* Once we have a sack generated, check to see what our sack
          * generation is, if its 0, reset the transports to 0, and reset
          * the association generation to 1