diff --git a/conf/machine/include/sysmobts.inc b/conf/machine/include/sysmobts.inc
index 8edf51e..4de200d 100644
--- a/conf/machine/include/sysmobts.inc
+++ b/conf/machine/include/sysmobts.inc
@@ -33,8 +33,6 @@ MACHINE_ESSENTIAL_EXTRA_RDEPENDS = "\
 	kernel-module-nls-utf8 \
 	kernel-module-rtfifo "
 
-IMAGE_FSTYPES ?= "tar.bz2 cpio.gz ubifs ubi jffs2"
-
 MACHINE_EXTRA_RDEPENDS = "\
 	task-sysmocom-bts \
 	sysmobts-firmware \
diff --git a/conf/machine/sysmobts-v1.conf b/conf/machine/sysmobts-v1.conf
index 08ebe78..aa5edb0 100644
--- a/conf/machine/sysmobts-v1.conf
+++ b/conf/machine/sysmobts-v1.conf
@@ -10,5 +10,6 @@ EXTRA_IMAGECMD_jffs2 = "--little-endian --eraseblock=0x20000 --pagesize=0x800 --
 MKUBIFS_ARGS = "-m 2048 -e 129024 -c 400"
 UBINIZE_ARGS = "-m 2048 -p 128KiB -s 512"
 
+IMAGE_FSTYPES ?= "tar.bz2 jffs2"
 require conf/machine/include/sysmobts.inc
 
diff --git a/conf/machine/sysmobts-v2.conf b/conf/machine/sysmobts-v2.conf
index 586a44c..4c35310 100644
--- a/conf/machine/sysmobts-v2.conf
+++ b/conf/machine/sysmobts-v2.conf
@@ -11,4 +11,5 @@ MKUBIFS_ARGS ?= "-m 2048 -e 129024 -c 999"
 UBINIZE_ARGS ?= "-m 2048 -p 128KiB -s 512"
 
 
+IMAGE_FSTYPES ?= "tar.bz2 ubi"
 require conf/machine/include/sysmobts.inc