diff --git a/Jenkinsfile b/Jenkinsfile
index c784cb1..407d290 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -21,7 +21,7 @@ pipeline {
         stage('Test lib'){
             steps {
                 caution('first-pass')
-                echo '${maintainer()} is cool'
+                echo "${maintainer()} is cool"
                 echo readCommonBash('imagename')
             }
         }