diff --git a/target/linux/orion/generic/target.mk b/target/linux/orion/generic/target.mk
index 451de4e90bb..7b054edd6be 100644
--- a/target/linux/orion/generic/target.mk
+++ b/target/linux/orion/generic/target.mk
@@ -6,7 +6,7 @@
 #
 
 BOARDNAME:=Generic
-FEATURES:=squashfs
+FEATURES+=squashfs
 
 define Target/Description
 	Build firmware images for Marvell Orion based boards that boot from internal flash.
diff --git a/target/linux/orion/harddisk/target.mk b/target/linux/orion/harddisk/target.mk
index a3a0e41c006..b37c48a520b 100644
--- a/target/linux/orion/harddisk/target.mk
+++ b/target/linux/orion/harddisk/target.mk
@@ -6,7 +6,7 @@
 #
 
 BOARDNAME:=Internal Hard-Disk
-FEATURES:=targz
+FEATURES+=targz
 
 define Target/Description
 	Build firmware images for Marvell Orion based boards that boot directly from internal disk storage.