diff --git a/inventory/group_vars/jenkins-dev b/inventory/group_vars/jenkins-dev
index b07e98094d..c55131ab01 100644
--- a/inventory/group_vars/jenkins-dev
+++ b/inventory/group_vars/jenkins-dev
@@ -6,15 +6,15 @@ slaves:
 - name: EL6
   host: jenkins-slave-el6.fedorainfracloud.org
   description: CentOS 6.6
-  labels: el centos centos6
+  labels: el EL el6 EL6 centos CentOS centos6 CentOS6
 - name: EL7
   host: jenkins-slave-el7.fedorainfracloud.org
   description: Red Hat Enterprise Linux Server 7.1
-  labels: el rhel rhel7
+  labels: el EL el7 EL7 rhel RHEL rhel7 RHEL7
 - name: F22
   host: jenkins-slave-f22.fedorainfracloud.org
   description: Fedora 22
-  labels: fedora fedora22
+  labels: fedora Fedora fedora22 Fedora22
 
 # Packages installed on all Jenkins slaves (Fedora, CentOS)
 slave_packages_common: