diff --git a/drivers/staging/r8188eu/core/rtw_wlan_util.c b/drivers/staging/r8188eu/core/rtw_wlan_util.c
index ac1ab5c6b169..62a96e59b00d 100644
--- a/drivers/staging/r8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/r8188eu/core/rtw_wlan_util.c
@@ -558,7 +558,7 @@ void WMMOnAssocRsp(struct adapter *padapter)
 			edca[XMIT_BE_QUEUE] = acParm;
 			break;
 		case 0x1:
-			SetHwReg8188EU(padapter, HW_VAR_AC_PARAM_BK, (u8 *)(&acParm));
+			rtw_write32(padapter, REG_EDCA_BK_PARAM, acParm);
 			edca[XMIT_BK_QUEUE] = acParm;
 			break;
 		case 0x2:
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index ef7af9ab368f..54087c3b2664 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -1346,9 +1346,6 @@ void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 		haldata->AcParam_BE = ((u32 *)(val))[0];
 		rtw_write32(Adapter, REG_EDCA_BE_PARAM, ((u32 *)(val))[0]);
 		break;
-	case HW_VAR_AC_PARAM_BK:
-		rtw_write32(Adapter, REG_EDCA_BK_PARAM, ((u32 *)(val))[0]);
-		break;
 	case HW_VAR_ACM_CTRL:
 		{
 			u8 acm_ctrl = *((u8 *)val);
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index d7e46e57c452..f41b6d76d73e 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -32,7 +32,6 @@ enum hw_variables {
 	HW_VAR_CAM_WRITE,
 	HW_VAR_CAM_READ,
 	HW_VAR_AC_PARAM_BE,
-	HW_VAR_AC_PARAM_BK,
 	HW_VAR_ACM_CTRL,
 	HW_VAR_AMPDU_MIN_SPACE,
 	HW_VAR_AMPDU_FACTOR,