diff --git a/EdkModulePkg/Bus/Pci/Ehci/Dxe/Ehci.h b/EdkModulePkg/Bus/Pci/Ehci/Dxe/Ehci.h
index ede8b43d2c..035d3302bd 100644
--- a/EdkModulePkg/Bus/Pci/Ehci/Dxe/Ehci.h
+++ b/EdkModulePkg/Bus/Pci/Ehci/Dxe/Ehci.h
@@ -28,8 +28,8 @@ Revision History
 #include <IndustryStandard/pci22.h>
 
 
-GLOBAL_REMOVE_IF_UNREFERENCED    extern UINTN  gEHCDebugLevel;
-GLOBAL_REMOVE_IF_UNREFERENCED    extern UINTN  gEHCErrorLevel;
+extern UINTN  gEHCDebugLevel;
+extern UINTN  gEHCErrorLevel;
 
 
 #define STALL_1_MACRO_SECOND              1
diff --git a/EdkModulePkg/Bus/Usb/UsbBus/Dxe/usbbus.h b/EdkModulePkg/Bus/Usb/UsbBus/Dxe/usbbus.h
index 8dd36f35d4..a5d4c2426c 100644
--- a/EdkModulePkg/Bus/Usb/UsbBus/Dxe/usbbus.h
+++ b/EdkModulePkg/Bus/Usb/UsbBus/Dxe/usbbus.h
@@ -31,8 +31,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include "usbutil.h"
 
 
-GLOBAL_REMOVE_IF_UNREFERENCED    extern UINTN  gUSBDebugLevel;
-GLOBAL_REMOVE_IF_UNREFERENCED    extern UINTN  gUSBErrorLevel;
+extern UINTN  gUSBDebugLevel;
+extern UINTN  gUSBErrorLevel;
 
 
 #define MICROSECOND       10000