diff --git a/soc/arm/st_stm32/Kconfig b/soc/arm/st_stm32/Kconfig
index a673b3b1a70..5cdc171762a 100644
--- a/soc/arm/st_stm32/Kconfig
+++ b/soc/arm/st_stm32/Kconfig
@@ -9,6 +9,7 @@ config SOC_FAMILY_STM32
 	bool
 	# omit prompt to signify a "hidden" option
 	select HAS_SEGGER_RTT
+	select BUILD_OUTPUT_HEX
 
 if SOC_FAMILY_STM32