diff --git a/arch/h8300/Kconfig.cpu b/arch/h8300/Kconfig.cpu
index 321f3922728b..c8ea74a29cd3 100644
--- a/arch/h8300/Kconfig.cpu
+++ b/arch/h8300/Kconfig.cpu
@@ -155,10 +155,12 @@ config H8300_TIMER16_CH
 config H8300_ITU_CH
 	int "ITU channel"
 	depends on H8300_ITU
+	range 0 4
 
 config H8300_TPU_CH
 	int "TPU channel"
 	depends on H8300_TPU
+	range 0 4
 
 source "kernel/Kconfig.preempt"