diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index cbf0d52..a66b9c4 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -402,7 +402,7 @@
 
 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
 
-#source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
+source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
 
 config SH_PCLK_FREQ
 	int "Peripheral clock frequency (in Hz)"