diff --git a/target/linux/ath79/image/lzma-loader/src/Makefile b/target/linux/ath79/image/lzma-loader/src/Makefile
index 5f10bdb8f1..133bf6ee8f 100644
--- a/target/linux/ath79/image/lzma-loader/src/Makefile
+++ b/target/linux/ath79/image/lzma-loader/src/Makefile
@@ -21,6 +21,7 @@ LOADER_DATA	:=
 BOARD		:=
 FLASH_OFFS	:=
 FLASH_MAX	:=
+KERNEL_CMDLINE	:= rootfstype=squashfs
 
 CC		:= $(CROSS_COMPILE)gcc
 LD		:= $(CROSS_COMPILE)ld