diff --git a/arch/arm/src/stm32/Make.defs b/arch/arm/src/stm32/Make.defs
index c220a8ec15f..2979407300c 100755
--- a/arch/arm/src/stm32/Make.defs
+++ b/arch/arm/src/stm32/Make.defs
@@ -47,5 +47,5 @@ CMN_CSRCS	= up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \
 CHIP_ASRCS	= 
 CHIP_CSRCS	= stm32_start.c stm32_rcc.c stm32_gpio.c stm32_irq.c \
 		  stm32_timerisr.c stm32_dma.c stm32_lowputc.c stm32_serial.c \
-		  stm32_spi.c stm32_usbdev.c
+		  stm32_spi.c stm32_usbdev.c stm32_sdio.c