diff --git a/arch/arm/boot/dts/rv1126-thunder-boot.dtsi b/arch/arm/boot/dts/rv1126-thunder-boot.dtsi
index f52ad1091b5d..923b591c5bb4 100644
--- a/arch/arm/boot/dts/rv1126-thunder-boot.dtsi
+++ b/arch/arm/boot/dts/rv1126-thunder-boot.dtsi
@@ -39,7 +39,7 @@
 		};
 
 		ramdisk_r: ramdisk@2800000 {
-			reg = <0x02800000 (40 * 0x00100000)>;
+			reg = <0x02800000 (48 * 0x00100000)>;
 		};
 
 		ramdisk_c: ramdisk@5800000 {