diff --git a/sdk/xtdk/bltypes.h b/sdk/xtdk/bltypes.h
index 78ea37f..8093122 100644
--- a/sdk/xtdk/bltypes.h
+++ b/sdk/xtdk/bltypes.h
@@ -31,6 +31,7 @@
 /* Loader protocol routine pointers */
 typedef EFI_STATUS (*PBL_ALLOCATE_PAGES)(IN UINT64 Size, OUT PEFI_PHYSICAL_ADDRESS Memory);
 typedef EFI_STATUS (*PBL_ALLOCATE_POOL)(IN UINT_PTR Size, OUT PVOID *Memory);
+typedef EFI_STATUS (*PBL_CLOSE_VOLUME)(IN PEFI_HANDLE VolumeHandle);
 typedef VOID (*PBL_CONSOLE_CLEAR_SCREEN)();
 typedef VOID (*PBL_CONSOLE_DISABLE_CURSOR)();
 typedef VOID (*PBL_CONSOLE_ENABLE_CURSOR)();
@@ -39,6 +40,7 @@ typedef VOID (*PBL_DEBUG_PRINT)(IN PUINT16 Format, IN ...);
 typedef EFI_STATUS (*PBL_EXIT_BOOT_SERVICES)(IN UINT_PTR MapKey);
 typedef EFI_STATUS (*PBL_FREE_PAGES)(IN UINT64 Size, IN EFI_PHYSICAL_ADDRESS Memory);
 typedef EFI_STATUS (*PBL_FREE_POOL)(IN PVOID Memory);
+typedef EFI_STATUS (*PBL_OPEN_VOLUME)(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath, OUT PEFI_HANDLE DiskHandle, OUT PEFI_FILE_HANDLE *FsHandle);
 typedef EFI_STATUS (*PBL_OPEN_XT_PROTOCOL)(OUT PVOID *ProtocolHandler, IN PEFI_GUID ProtocolGuid);
 typedef VOID (*PBL_SLEEP_EXECUTION)(IN ULONG_PTR Milliseconds);
 
@@ -91,6 +93,11 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_EXIT_BOOT_SERVICES ExitBootServices;
         PBL_SLEEP_EXECUTION SleepExecution;
     } Util;
+    struct
+    {
+        PBL_CLOSE_VOLUME Close;
+        PBL_OPEN_VOLUME Open;
+    } Volume;
 } XTBL_LOADER_PROTOCOL, *PXTBL_LOADER_PROTOCOL;
 
 #endif /* __XTDK_BMTYPES_H */
diff --git a/xtldr2/protocol.c b/xtldr2/protocol.c
index 34aa2bb..2a3d20c 100644
--- a/xtldr2/protocol.c
+++ b/xtldr2/protocol.c
@@ -102,6 +102,8 @@ BlpRegisterXtLoaderProtocol()
     LdrProtocol.Protocol.Open = BlOpenXtProtocol;
     LdrProtocol.Util.ExitBootServices = BlExitBootServices;
     LdrProtocol.Util.SleepExecution = BlSleepExecution;
+    LdrProtocol.Volume.Close = BlCloseVolume;
+    LdrProtocol.Volume.Open = BlOpenVolume;
 
     /* Register XTLDR loader protocol */
     BlDebugPrint(L"Registering XT loader protocol\n");