diff --git a/awx/ui/static/js/helpers/JobSubmission.js b/awx/ui/static/js/helpers/JobSubmission.js
index cb0d3b8be6..faab6dfc6d 100644
--- a/awx/ui/static/js/helpers/JobSubmission.js
+++ b/awx/ui/static/js/helpers/JobSubmission.js
@@ -39,7 +39,7 @@ angular.module('JobSubmissionHelper', [ 'RestServices', 'Utilities', 'Credential
                                     Rest.get()
                                     .success(function (data) {
                                         if(!Empty(data.extra_vars)){
-                                            data.extra_vars = ToJSON('json',  data.extra_vars, false);
+                                            data.extra_vars = ToJSON('yaml',  data.extra_vars, false);
                                             $.each(data.extra_vars, function(key,value){
                                                 job_launch_data.extra_vars[key] = value;
                                             });