diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.h b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.h
index 110fccb858..1b36a6d853 100644
--- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.h
+++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.h
@@ -91,7 +91,7 @@ EFI_STATUS
   IN USB_INTERFACE        *UsbIf
   );
 
-typedef struct _USB_HUB_API{
+struct _USB_HUB_API{
   USB_HUB_INIT                Init;
   USB_HUB_GET_PORT_STATUS     GetPortStatus;
   USB_HUB_CLEAR_PORT_CHANGE   ClearPortChange;
@@ -99,7 +99,7 @@ typedef struct _USB_HUB_API{
   USB_HUB_CLEAR_PORT_FEATURE  ClearPortFeature;
   USB_HUB_RESET_PORT          ResetPort;
   USB_HUB_RELEASE             Release;
-}USB_HUB_API;
+};
 
 /**
   Return the endpoint descriptor in this interface.