diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 2b0e7ce..36f71d6 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -743,3 +743,8 @@ BB_HASHCONFIG_WHITELIST ?= "${BB_HASHBASE_WHITELIST} DATE TIME SESSION_MANAGER D
 
 MLPREFIX ??= ""
 MULTILIB_VARIANTS ??= ""
+
+RUNNABLE_IMAGE_TYPES ?= "ext2 ext3"
+RUNNABLE_MACHINE_PATTERNS ?= "qemu"
+
+DEPLOYABLE_IMAGE_TYPES ?= "hddimg iso"