diff --git a/modules/openstack_project/files/jenkins_job_builder/config/puppet-module-jobs.yaml b/modules/openstack_project/files/jenkins_job_builder/config/puppet-module-jobs.yaml
index 012d0160de..e39209eed8 100644
--- a/modules/openstack_project/files/jenkins_job_builder/config/puppet-module-jobs.yaml
+++ b/modules/openstack_project/files/jenkins_job_builder/config/puppet-module-jobs.yaml
@@ -8,7 +8,7 @@
     builders:
       - gerrit-git-prep
       - shell: |
-          export PUPPET_GEM_VERSION="~> ${puppet_version}"
+          export PUPPET_GEM_VERSION='~> {puppet_version}'
           mkdir .bundled_gems
           export GEM_HOME=`pwd`/.bundled_gems
           bundle install