diff --git a/arch/arm/boot/dts/rk3188-tb.dts b/arch/arm/boot/dts/rk3188-tb.dts
index 75c973262a39..037dacbabfa8 100644
--- a/arch/arm/boot/dts/rk3188-tb.dts
+++ b/arch/arm/boot/dts/rk3188-tb.dts
@@ -15,7 +15,6 @@
 	};
 
 	fiq-debugger {
-		serial-id = <2>;
 		status = "okay";
 	};