diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c
index ba8051ea8..2ba3311c5 100644
--- a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c
@@ -106,7 +106,7 @@ void __init prom_init(void)
 	mips_machtype = MACH_ADM_GW_5120;
 
 	/* init command line, register a default kernel command line */
-	strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=jffs2 init=/etc/preinit");
+	strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2 init=/etc/preinit");
 
 	/* init memory map */
 	prom_meminit();