diff --git a/driver/main.c b/driver/main.c
index 4eb6f82..b399648 100644
--- a/driver/main.c
+++ b/driver/main.c
@@ -346,7 +346,7 @@ efi_main(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)
     // Hook all the other runtime services functions
     oGetTime = (EFI_GET_TIME)SetServicePointer(&RT->Hdr, (VOID**)&RT->GetTime, (VOID**)&HookedGetTime);
     oSetTime = (EFI_SET_TIME)SetServicePointer(&RT->Hdr, (VOID**)&RT->SetTime, (VOID**)&HookedSetTime);
-    oGetWakeupTime = (EFI_SET_TIME)SetServicePointer(&RT->Hdr, (VOID**)&RT->GetWakeupTime, (VOID**)&HookedGetWakeupTime);
+    oGetWakeupTime = (EFI_GET_WAKEUP_TIME)SetServicePointer(&RT->Hdr, (VOID**)&RT->GetWakeupTime, (VOID**)&HookedGetWakeupTime);
     oSetWakeupTime = (EFI_SET_WAKEUP_TIME)SetServicePointer(&RT->Hdr, (VOID**)&RT->SetWakeupTime, (VOID**)&HookedSetWakeupTime);
     oSetVirtualAddressMap = (EFI_SET_VIRTUAL_ADDRESS_MAP)SetServicePointer(&RT->Hdr, (VOID**)&RT->SetVirtualAddressMap, (VOID**)&HookedSetVirtualAddressMap);
     oConvertPointer = (EFI_CONVERT_POINTER)SetServicePointer(&RT->Hdr, (VOID**)&RT->ConvertPointer, (VOID**)&HookedConvertPointer);