diff --git a/jenkins/client/job/salt-formulas/tests.yml b/jenkins/client/job/salt-formulas/tests.yml
index 646212b..d8f21ce 100644
--- a/jenkins/client/job/salt-formulas/tests.yml
+++ b/jenkins/client/job/salt-formulas/tests.yml
@@ -154,7 +154,8 @@
             param:
               SALT_VERSION:
                 type: string
-                default: "latest"
+                default: ""
+                description: "Version of salt for use in test, empty string means latest (default)"
               SALT_OPTS:
                 type: string
                 default: "--force-color"