diff --git a/jjb/onos/onos-release-build.sh b/jjb/onos/onos-release-build.sh
index 1c4f5c8..8d488b8 100644
--- a/jjb/onos/onos-release-build.sh
+++ b/jjb/onos/onos-release-build.sh
@@ -36,10 +36,10 @@
 export WIKI_USER
 
 # lock gerrit to prevent checkins
-ssh -p 29418 gerrit.onosproject.org projectlock lock onos master
+ssh -p 29418 gerrit.onosproject.org projectlock lock onos ${GERRIT_BRANCH}
 
 # unlock on exit
-trap "ssh -p 29418 gerrit.onosproject.org projectlock unlock onos master" EXIT
+trap "ssh -p 29418 gerrit.onosproject.org projectlock unlock onos ${GERRIT_BRANCH}" EXIT
 
 # get the sources
 git checkout $GERRIT_BRANCH