diff --git a/arch/arm/src/lpc43xx/Make.defs b/arch/arm/src/lpc43xx/Make.defs
index 9d7c48d9c0..9e28dffc9a 100644
--- a/arch/arm/src/lpc43xx/Make.defs
+++ b/arch/arm/src/lpc43xx/Make.defs
@@ -154,7 +154,7 @@ endif
 
 ifeq ($(CONFIG_LPC43_USB0),y)
 ifeq ($(CONFIG_USBDEV),y)
-CHIP_CSRCS	+= lpc31_usb0dev.c
+CHIP_CSRCS += lpc43_usb0dev.c
 endif
 endif