diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/usbbus.c b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.c
similarity index 100%
rename from MdeModulePkg/Bus/Usb/UsbBusDxe/usbbus.c
rename to MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.c