diff --git a/arch/arm/src/lpc43xx/Make.defs b/arch/arm/src/lpc43xx/Make.defs
index 4d3df8d3a0a..45b7caf2623 100644
--- a/arch/arm/src/lpc43xx/Make.defs
+++ b/arch/arm/src/lpc43xx/Make.defs
@@ -122,15 +122,11 @@ endif
 
 ifeq ($(CONFIG_LPC43_SPI),y)
 CHIP_CSRCS += lpc43_spi.c
-else
-ifeq ($(CONFIG_LPC43_SSP0),y)
+else ifeq ($(CONFIG_LPC43_SSP0),y)
 CHIP_CSRCS += lpc43_spi.c
-else
-ifeq ($(CONFIG_LPC43_SSP1),y)
+else ifeq ($(CONFIG_LPC43_SSP1),y)
 CHIP_CSRCS += lpc43_spi.c
 endif
-endif
-endif
 
 ifeq ($(CONFIG_LPC43_SPIFI),y)
 CHIP_CSRCS += lpc43_spifi.c
@@ -138,11 +134,9 @@ endif
 
 ifeq ($(CONFIG_LPC43_SSP0),y)
 CHIP_CSRCS += lpc43_ssp.c
-else
-ifeq ($(CONFIG_LPC43_SSP1),y)
+else ifeq ($(CONFIG_LPC43_SSP1),y)
 CHIP_CSRCS += lpc43_ssp.c
 endif
-endif
 
 ifeq ($(CONFIG_LPC43_TIMER),y)
 CHIP_CSRCS += lpc43_timer.c
@@ -154,34 +148,24 @@ endif
 
 ifeq ($(CONFIG_LPC43_I2C0),y)
 CHIP_CSRCS += lpc43_i2c.c
-else
-ifeq ($(CONFIG_LPC43_I2C1),y)
+else ifeq ($(CONFIG_LPC43_I2C1),y)
 CHIP_CSRCS += lpc43_i2c.c
 endif
-endif
 
 ifeq ($(CONFIG_LPC43_CAN0),y)
 CHIP_CSRCS += lpc43_can.c
-else
-ifeq ($(CONFIG_LPC43_CAN1),y)
+else ifeq ($(CONFIG_LPC43_CAN1),y)
 CHIP_CSRCS += lpc43_can.c
 endif
-endif
 
 ifeq ($(CONFIG_LPC43_ADC0),y)
 CHIP_CSRCS += lpc43_adc.c
-else
-ifeq ($(CONFIG_LPC43_ADC1),y)
+else ifeq ($(CONFIG_LPC43_ADC1),y)
 CHIP_CSRCS += lpc43_adc.c
 endif
-endif
 
 ifeq ($(CONFIG_LPC43_DAC),y)
-CHIP_CSRCS += lpc43_adc.c
-else
-ifeq ($(CONFIG_LPC43_DAC),y)
-CHIP_CSRCS += lpc43_adc.c
-endif
+CHIP_CSRCS += lpc43_dac.c
 endif
 
 ifeq ($(CONFIG_LPC43_USBOTG),y)