diff --git a/arch/loongarch/boot/dts/loongson2k1000.dtsi b/arch/loongarch/boot/dts/loongson2k1000.dtsi
index d0b8950b3..59548ae9b 100644
--- a/arch/loongarch/boot/dts/loongson2k1000.dtsi
+++ b/arch/loongarch/boot/dts/loongson2k1000.dtsi
@@ -375,7 +375,7 @@
 			interrupts = <28 IRQ_TYPE_LEVEL_HIGH>,
 				     <29 IRQ_TYPE_LEVEL_HIGH>,
 				     <30 IRQ_TYPE_LEVEL_HIGH>,
-				     <30 IRQ_TYPE_LEVEL_HIGH>,
+				     <31 IRQ_TYPE_LEVEL_HIGH>,
 				     <26 IRQ_TYPE_LEVEL_HIGH>,
 				     <26 IRQ_TYPE_LEVEL_HIGH>,
 				     <26 IRQ_TYPE_LEVEL_HIGH>,