diff --git a/drivers/interrupt_controller/intc_exti_stm32.c b/drivers/interrupt_controller/intc_exti_stm32.c
index 5ac0ba01b0cad9..11f699403b2f97 100644
--- a/drivers/interrupt_controller/intc_exti_stm32.c
+++ b/drivers/interrupt_controller/intc_exti_stm32.c
@@ -158,6 +158,7 @@ void stm32_exti_trigger(int line, int trigger)
 		break;
 	default:
 		__ASSERT_NO_MSG(trigger);
+		break;
 	}
 	z_stm32_hsem_unlock(CFG_HW_EXTI_SEMID);
 }