diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c b/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
index bc7cfb9c90..61a8fb2023 100644
--- a/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
+++ b/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
@@ -1011,7 +1011,7 @@ Uhci2AsyncInterruptTransfer (
     return EFI_OUT_OF_RESOURCES;
   }
 
-  DataPhy = (UINT8 *)UsbHcGetPciAddressForHostMem (Uhc->MemPool, DataPtr, DataLength);
+  DataPhy = (UINT8 *) (UINTN) UsbHcGetPciAddressForHostMem (Uhc->MemPool, DataPtr, DataLength);
 
   OldTpl = gBS->RaiseTPL (UHCI_TPL);
 
diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c b/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
index 4d6957d70a..0052fb12c2 100644
--- a/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
+++ b/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
@@ -83,7 +83,7 @@ UhciInitFrameList (
   // Tell the Host Controller where the Frame List lies,
   // by set the Frame List Base Address Register.
   //
-  UhciSetFrameListBaseAddr (Uhc->PciIo, (VOID *) MappedAddr);
+  UhciSetFrameListBaseAddr (Uhc->PciIo, (VOID *) (UINTN) MappedAddr);
 
   //
   // Allocate the QH used by sync interrupt/control/bulk transfer.