diff --git a/Jenkinsfile b/Jenkinsfile
index 98f1ceb..4e93623 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -75,7 +75,7 @@
 	],
 	inLabels:   [ 'ubuntu-16', 'centos-7' ],
 	onLabels:   [ default: 'master', docker: 'docker', mac: 'mac', android: 'android', ],
-	noPoll:		'(releaseBranch|.+_.+)',
+	noPoll:		"(${releaseBranch}|.+_.+)",	// Don't poll release and private branches
 )
 
 lazyStage {