diff --git a/Jenkinsfile b/Jenkinsfile
index 66b1dd2..03dd4e1 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,12 +1,14 @@
+#!groovy
+
 node('packer') {
 
   stage 'Checkout'
 
-    # Get the packer-centos-7 repo
+    // Get the packer-centos-7 repo
 
     checkout scm
 
-    # Get the ansible-playbooks repo
+    // Get the ansible-playbooks repo
 
   stage 'Validate'