diff --git a/arch/arm/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/dts/sun8i-a83t-tbs-a711.dts
index 4c71358c68d..0342d835251 100644
--- a/arch/arm/dts/sun8i-a83t-tbs-a711.dts
+++ b/arch/arm/dts/sun8i-a83t-tbs-a711.dts
@@ -185,6 +185,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc0_pins>;
 	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
 	status = "okay";
 };