diff --git a/sabayon-buildpackages b/sabayon-buildpackages
index b26b881..0556fa6 100755
--- a/sabayon-buildpackages
+++ b/sabayon-buildpackages
@@ -57,6 +57,8 @@ docker_volumes=( -v "$OUTPUT_DIR:/usr/portage/packages" )
 [ -z "$REMOTE_PORTDIR" ] || docker_env+=(-e "REMOTE_PORTDIR=$REMOTE_PORTDIR")
 [ -z "$ETP_NOCACHE" ] || docker_env+=(-e "ETP_NOCACHE=$ETP_NOCACHE")
 [ -z "$PRETEND" ] || docker_env+=(-e "PRETEND=$PRETEND")
+[ -z "$DETECT_OBSOLETE" ] || docker_env+=(-e "DETECT_OBSOLETE=$DETECT_OBSOLETE")
+[ -z "$TARGET_OVERLAY" ] || docker_env+=(-e "TARGET_OVERLAY=$TARGET_OVERLAY")
 [ -d "$LOCAL_OVERLAY" ] && docker_volumes+=(-v "$LOCAL_OVERLAY:/usr/local/local_portage")
 
 if [ -e $MAKE_CONF ]; then