diff --git a/target/linux/ramips/dts/AR670W.dts b/target/linux/ramips/dts/AR670W.dts
index 3ee39c1eb7..6faa8e5f1f 100644
--- a/target/linux/ramips/dts/AR670W.dts
+++ b/target/linux/ramips/dts/AR670W.dts
@@ -39,6 +39,7 @@
 			};
 
 			partition@40000 {
+				compatible = "lzma";
 				reg = <0x40000 0x3c0000>;
 				label = "firmware";
 			};
diff --git a/target/linux/ramips/dts/DAP-1522-A1.dts b/target/linux/ramips/dts/DAP-1522-A1.dts
index bdd63ea96b..aad706df2e 100644
--- a/target/linux/ramips/dts/DAP-1522-A1.dts
+++ b/target/linux/ramips/dts/DAP-1522-A1.dts
@@ -40,6 +40,7 @@
 			};
 
 			partition@40000 {
+				compatible = "wrg";
 				label = "firmware";
 				reg = <0x40000 0x3a0000>;
 			};
diff --git a/target/linux/ramips/dts/WCR-1166DS.dts b/target/linux/ramips/dts/WCR-1166DS.dts
index ca715c8ba5..b8e86e496c 100644
--- a/target/linux/ramips/dts/WCR-1166DS.dts
+++ b/target/linux/ramips/dts/WCR-1166DS.dts
@@ -152,6 +152,7 @@
 			};
 
 			partition@50000 {
+				compatible = "openwrt,trx";
 				label = "firmware";
 				reg = <0x50000 0x7c0000>;
 			};