diff --git a/soc/arm/st_stm32/stm32l0/Kconfig.defconfig.stm32l010xb b/soc/arm/st_stm32/stm32l0/Kconfig.defconfig.stm32l010xb
index d447e92f4e0915..89e20292fc1281 100644
--- a/soc/arm/st_stm32/stm32l0/Kconfig.defconfig.stm32l010xb
+++ b/soc/arm/st_stm32/stm32l0/Kconfig.defconfig.stm32l010xb
@@ -9,6 +9,6 @@ config SOC
 	default "stm32l010xb"
 
 config NUM_IRQS
-	default 32
+	default 30
 
 endif # SOC_STM32L010XB