diff --git a/target/linux/mediatek/dts/mt7988d-keenetic-kn-1812.dtsi b/target/linux/mediatek/dts/mt7988d-keenetic-kn-1812.dtsi
index 1eb534dbc4..140ae1528b 100644
--- a/target/linux/mediatek/dts/mt7988d-keenetic-kn-1812.dtsi
+++ b/target/linux/mediatek/dts/mt7988d-keenetic-kn-1812.dtsi
@@ -400,7 +400,7 @@
 
 		reset-gpios = <&pio 4 GPIO_ACTIVE_LOW>;
 		reset-assert-us = <100000>;
-		reset-deassert-us = <100000>;
+		reset-deassert-us = <221000>;
 	};
 };