diff --git a/ceph-osd/templates/bin/osd/_common.sh.tpl b/ceph-osd/templates/bin/osd/_common.sh.tpl
index bf095ebf4..5ff3109ab 100644
--- a/ceph-osd/templates/bin/osd/_common.sh.tpl
+++ b/ceph-osd/templates/bin/osd/_common.sh.tpl
@@ -24,6 +24,7 @@ set -ex
 : "${OSD_BOOTSTRAP_KEYRING:=/var/lib/ceph/bootstrap-osd/${CLUSTER}.keyring}"
 : "${OSD_JOURNAL_UUID:=$(uuidgen)}"
 : "${OSD_JOURNAL_SIZE:=$(awk '/^osd_journal_size/{print $3}' ${CEPH_CONF}.template)}"
+: "${OSD_WEIGHT:=1.0}"
 
 eval CRUSH_FAILURE_DOMAIN_TYPE=$(cat /etc/ceph/storage.json | python -c 'import sys, json; data = json.load(sys.stdin); print(json.dumps(data["failure_domain"]))')
 eval CRUSH_FAILURE_DOMAIN_NAME=$(cat /etc/ceph/storage.json | python -c 'import sys, json; data = json.load(sys.stdin); print(json.dumps(data["failure_domain_name"]))')