diff --git a/lustre/lov/lov_obd.c b/lustre/lov/lov_obd.c
index e9c8c12fbe637664c1e51916a9cc859dbfbaeab7..7d657f2e08db71ddd8b123ff172f9b492aa07699 100644
--- a/lustre/lov/lov_obd.c
+++ b/lustre/lov/lov_obd.c
@@ -2079,7 +2079,7 @@ static int lov_enqueue(struct obd_export *exp, struct lov_stripe_md *lsm,
                         loi->loi_rss = tmp;
                         // Extend KMS up to the end of this lock, and no further
                         if (tmp > lock->l_policy_data.l_extent.end)
-                                tmp = lock->l_policy_data.l_extent.end;
+                                tmp = lock->l_policy_data.l_extent.end + 1;
                         if (tmp > loi->loi_kms) {
                                 CDEBUG(D_INODE, "lock acquired, setting rss="
                                        LPU64", kms="LPU64"\n", loi->loi_rss,