diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 028f54b453d0..9237930991ca 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -715,6 +715,7 @@ static void vnt_bss_info_changed(struct ieee80211_hw *hw,
 			priv->short_slot_time = false;
 
 		vnt_set_short_slot_time(priv);
+		vnt_update_ifs(priv);
 		vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
 		vnt_update_pre_ed_threshold(priv, false);
 	}