diff --git a/test-salt-model-wrapper.groovy b/test-salt-model-wrapper.groovy
index 2a8a80f..42aa4e9 100644
--- a/test-salt-model-wrapper.groovy
+++ b/test-salt-model-wrapper.groovy
@@ -205,7 +205,8 @@
                         buildTestParamsOld['COOKIECUTTER_TEMPLATE_REF'] = ''
                         buildTestParamsOld['COOKIECUTTER_TEMPLATE_BRANCH'] = oldRef
                         String threadName = "${branchJobName}-${oldRef}"
-                        overrideVote = oldRef == 'release/2018.11.0' ? true : null
+                        // disable votes for release/2018.11.0 branch
+                        overrideVote = oldRef == 'release/2018.11.0' ? false : null
                         branches[threadName] = runTests(branchJobName, yamlJobParameters(buildTestParamsOld), threadName, overrideVote)
                     }
                 }