diff --git a/arch/arm/src/stm32l4/Make.defs b/arch/arm/src/stm32l4/Make.defs
index 4f32ead77f5..2f110ab2be1 100644
--- a/arch/arm/src/stm32l4/Make.defs
+++ b/arch/arm/src/stm32l4/Make.defs
@@ -115,7 +115,7 @@ CHIP_ASRCS  =
 CHIP_CSRCS  = stm32l4_allocateheap.c stm32l4_exti_gpio.c stm32l4_gpio.c
 CHIP_CSRCS += stm32l4_idle.c stm32l4_irq.c stm32l4_lowputc.c stm32l4_rcc.c
 CHIP_CSRCS += stm32l4_serial.c stm32l4_start.c stm32l4_waste.c
-CHIP_CSRCS += stm32l4_spi.c stm32_i2c.c
+CHIP_CSRCS += stm32l4_spi.c stm32l4_i2c.c
 
 ifneq ($(CONFIG_SCHED_TICKLESS),y)
 CHIP_CSRCS += stm32l4_timerisr.c