diff --git a/target/linux/uml/Makefile b/target/linux/uml/Makefile
index 91631391a7..7cf1614218 100644
--- a/target/linux/uml/Makefile
+++ b/target/linux/uml/Makefile
@@ -20,7 +20,7 @@ ARCH:=$(shell uname -m | sed \
 )
 BOARD:=uml
 BOARDNAME:=User Mode Linux
-FEATURES:=squashfs ext4 audio
+FEATURES:=squashfs ext4 audio source-only
 MAINTAINER:=Florian Fainelli <florian@openwrt.org>
 
 KERNEL_PATCHVER:=4.4