diff --git a/core/rtw_mlme_ext.c b/core/rtw_mlme_ext.c
index 51c1ae9..cb6941e 100644
--- a/core/rtw_mlme_ext.c
+++ b/core/rtw_mlme_ext.c
@@ -4965,7 +4965,7 @@ void update_monitor_frame_attrib(_adapter *padapter, struct _ADAPTER_LINK *padap
 
 	pattrib->mbssid = 0;
 	pattrib->hw_ssn_sel = pxmitpriv->hw_ssn_seq_no;
-
+	pattrib->monitor_mode_frame = _TRUE;
 }