diff --git a/arch/arm/mach-shmobile/board-koelsch.c b/arch/arm/mach-shmobile/board-koelsch.c
index 59fa0b975473..5b81a343c5f9 100644
--- a/arch/arm/mach-shmobile/board-koelsch.c
+++ b/arch/arm/mach-shmobile/board-koelsch.c
@@ -56,7 +56,8 @@ static const struct gpio_led_platform_data koelsch_leds_pdata __initconst = {
 
 /* GPIO KEY */
 #define GPIO_KEY(c, g, d, ...) \
-	{ .code = c, .gpio = g, .desc = d, .active_low = 1 }
+	{ .code = c, .gpio = g, .desc = d, .active_low = 1, \
+	  .debounce_interval = 20 }
 
 static struct gpio_keys_button gpio_buttons[] = {
 	GPIO_KEY(KEY_4,		RCAR_GP_PIN(5, 3),	"SW2-pin4"),