diff --git a/hal/usb_halinit.c b/hal/usb_halinit.c
index e20497a..e26a516 100755
--- a/hal/usb_halinit.c
+++ b/hal/usb_halinit.c
@@ -590,11 +590,10 @@ _InitHardwareDropIncorrectBulkOut(
 	IN  struct adapter *Adapter
 	)
 {
-#ifdef ENABLE_USB_DROP_INCORRECT_OUT
 	u32	value32 = rtw_read32(Adapter, REG_TXDMA_OFFSET_CHK);
+
 	value32 |= DROP_DATA_EN;
 	rtw_write32(Adapter, REG_TXDMA_OFFSET_CHK, value32);
-#endif
 }
 
 static void
diff --git a/include/autoconf.h b/include/autoconf.h
index 2482262..a584ef0 100755
--- a/include/autoconf.h
+++ b/include/autoconf.h
@@ -47,8 +47,6 @@
 
 #define CONFIG_OUT_EP_WIFI_MODE	0
 
-#define ENABLE_USB_DROP_INCORRECT_OUT
-
 #define DISABLE_BB_RF	0
 
 #define MP_DRIVER 0