diff --git a/html/includes/forms/parse-template-rules.inc.php b/html/includes/forms/parse-template-rules.inc.php
index 199daa559..7211bc2b2 100644
--- a/html/includes/forms/parse-template-rules.inc.php
+++ b/html/includes/forms/parse-template-rules.inc.php
@@ -11,9 +11,9 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
-header('Content-type: application/json');
 
 if (is_admin() === false) {
+	header('Content-type: text/plain');
     die('ERROR: You need to be admin');
 }
 
@@ -25,5 +25,6 @@ if (is_numeric($template_id) && $template_id > 0) {
     }
 
     $output = array('rule_id' => $rules);
+	header('Content-type: application/json');
     echo _json_encode($output);
 }
diff --git a/html/includes/forms/schedule-maintenance.inc.php b/html/includes/forms/schedule-maintenance.inc.php
index 661c9ba49..40a39e613 100644
--- a/html/includes/forms/schedule-maintenance.inc.php
+++ b/html/includes/forms/schedule-maintenance.inc.php
@@ -11,9 +11,9 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
-header('Content-type: application/json');
 
 if (is_admin() === false) {
+	header('Content-type: text/plain');
     die('ERROR: You need to be admin');
 }
 
@@ -129,5 +129,5 @@ else if ($sub_type == 'del-maintenance') {
         'message' => $message,
     );
 }//end if
-
+header('Content-type: application/json');
 echo _json_encode($response);
diff --git a/html/includes/forms/test-transport.inc.php b/html/includes/forms/test-transport.inc.php
index 2486c71ca..81da4e40b 100644
--- a/html/includes/forms/test-transport.inc.php
+++ b/html/includes/forms/test-transport.inc.php
@@ -11,9 +11,9 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
-header('Content-type: application/json');
 
 if (is_admin() === false) {
+	header('Content-type: text/plain');
     die('ERROR: You need to be admin');
 }
 
@@ -51,5 +51,5 @@ if (file_exists($config['install_dir']."/includes/alerts/transport.".$transport.
         }
     }
 }
-
+header('Content-type: application/json');
 echo _json_encode(array('status' => $status));