diff --git a/target/linux/ramips/dts/mt7621_cudy_wr1300-v2.dts b/target/linux/ramips/dts/mt7621_cudy_wr1300-v2.dts
index 264a0fa5c16..a4a148f53b9 100644
--- a/target/linux/ramips/dts/mt7621_cudy_wr1300-v2.dts
+++ b/target/linux/ramips/dts/mt7621_cudy_wr1300-v2.dts
@@ -90,7 +90,7 @@
 				};
 
 				eeprom_factory_8000: eeprom@8000 {
-					reg = <0x8000 0x200>;
+					reg = <0x8000 0x4da8>;
 				};
 			};