diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c b/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c
index fd799884f6..aa69c47aad 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c
@@ -656,7 +656,7 @@ UsbHcAllocateAlignedPages (
                       PciIo,
                       AllocateAnyPages,
                       EfiBootServicesData,
-                      Pages,
+                      RealPages,
                       &Memory,
                       0
                       );