diff --git a/CORE/SME/inc/sme_QosApi.h b/CORE/SME/inc/sme_QosApi.h
index 7e5a8df..e459e26 100644
--- a/CORE/SME/inc/sme_QosApi.h
+++ b/CORE/SME/inc/sme_QosApi.h
@@ -228,6 +228,7 @@
   v_U32_t                         min_phy_rate;
   v_U16_t                         surplus_bw_allowance;
   v_U16_t                         medium_time;
+  v_U8_t                          expec_psb_byapp;
 } sme_QosWmmTspecInfo;