diff --git a/jenkins/client/job/salt-models/generate-auto.yml b/jenkins/client/job/salt-models/generate-auto.yml
index eea4596..4f62784 100644
--- a/jenkins/client/job/salt-models/generate-auto.yml
+++ b/jenkins/client/job/salt-models/generate-auto.yml
@@ -41,4 +41,4 @@
                 default: master
               EMAIL_ADDRESS:
                 type: string
-                default: master
\ No newline at end of file
+                default: ""
\ No newline at end of file
diff --git a/jenkins/slave/ruby.yml b/jenkins/slave/ruby.yml
new file mode 100644
index 0000000..9fd26c3
--- /dev/null
+++ b/jenkins/slave/ruby.yml
@@ -0,0 +1,12 @@
+classes:
+  - system.jenkins.slave
+parameters:
+  linux:
+    system:
+      package:
+        ruby:
+          version: latest
+        rbenv:
+          version: latest
+        ruby-build:
+          version: latest