diff --git a/target/linux/ath79/dts/ar7241_ubnt_unifi-ap.dtsi b/target/linux/ath79/dts/ar7241_ubnt_unifi-ap.dtsi
index d9c7336f911..e9abd423f57 100644
--- a/target/linux/ath79/dts/ar7241_ubnt_unifi-ap.dtsi
+++ b/target/linux/ath79/dts/ar7241_ubnt_unifi-ap.dtsi
@@ -83,7 +83,7 @@
 					};
 
 					calibration_art_1000: calibration@1000 {
-						reg = <0x1000 0x440>;
+						reg = <0x1000 0x3d8>;
 					};
 				};
 			};
@@ -92,6 +92,7 @@
 };
 
 &wifi {
+	compatible = "pci168c,002e";
 	nvmem-cells = <&calibration_art_1000>;
 	nvmem-cell-names = "calibration";
 };