diff --git a/xtldr/includes/xtldr.h b/xtldr/includes/xtldr.h
index 55e00b45..0eb7b75f 100644
--- a/xtldr/includes/xtldr.h
+++ b/xtldr/includes/xtldr.h
@@ -37,6 +37,11 @@ XTCDECL
 VOID
 BlClearConsoleScreen();
 
+XTCDECL
+EFI_STATUS
+BlCloseProtocol(IN PEFI_HANDLE Handle,
+                IN PEFI_GUID ProtocolGuid);
+
 XTCDECL
 EFI_STATUS
 BlCloseVolume(IN PEFI_HANDLE VolumeHandle);