diff --git a/target/linux/ramips/dts/mt7621.dtsi b/target/linux/ramips/dts/mt7621.dtsi
index 1a58d9d07..95f67a190 100644
--- a/target/linux/ramips/dts/mt7621.dtsi
+++ b/target/linux/ramips/dts/mt7621.dtsi
@@ -605,6 +605,7 @@
 			reg = <0x0000 0 0 0 0>;
 			#address-cells = <3>;
 			#size-cells = <2>;
+			device_type = "pci";
 			ranges;
 		};
 
@@ -612,6 +613,7 @@
 			reg = <0x0800 0 0 0 0>;
 			#address-cells = <3>;
 			#size-cells = <2>;
+			device_type = "pci";
 			ranges;
 		};
 
@@ -619,6 +621,7 @@
 			reg = <0x1000 0 0 0 0>;
 			#address-cells = <3>;
 			#size-cells = <2>;
+			device_type = "pci";
 			ranges;
 		};
 	};