diff --git a/include/lib/function_javascript.php b/include/lib/function_javascript.php
index 2b9b7a1b1..0b0a4a654 100644
--- a/include/lib/function_javascript.php
+++ b/include/lib/function_javascript.php
@@ -2793,7 +2793,7 @@ EOF;
  */
 function json_response($p_answer)
 {
-    header("Content-type: text/json; charset: utf8", true);
+    header("Content-type: application/json; charset: utf8", true);
     echo json_encode($p_answer,
             JSON_UNESCAPED_UNICODE|JSON_UNESCAPED_SLASHES|JSON_NUMERIC_CHECK);
 }