diff --git a/classes/display/DisplayHandler.class.php b/classes/display/DisplayHandler.class.php
index 8529dc8f5..d4fc3445e 100644
--- a/classes/display/DisplayHandler.class.php
+++ b/classes/display/DisplayHandler.class.php
@@ -330,7 +330,7 @@ class DisplayHandler extends Handler
 	 */
 	public static function _printJSONHeader()
 	{
-		header("Content-Type: text/javascript; charset=UTF-8");
+		header("Content-Type: application/json; charset=UTF-8");
 	}
 
 	/**