diff --git a/src/node/db/SecurityManager.js b/src/node/db/SecurityManager.js
index bc8f59426..e9aefcd61 100644
--- a/src/node/db/SecurityManager.js
+++ b/src/node/db/SecurityManager.js
@@ -27,6 +27,7 @@ var sessionManager = require("./SessionManager");
 var settings = require("../utils/Settings");
 var log4js = require('log4js');
 var authLogger = log4js.getLogger("auth");
+const thenify = require("thenify").withCallback;
 
 /**
  * This function controlls the access to a pad, it checks if the user can access a pad.
@@ -36,7 +37,7 @@ var authLogger = log4js.getLogger("auth");
  * @param password the password the user has given to access this pad, can be null
  * @param callback will be called with (err, {accessStatus: grant|deny|wrongPassword|needPassword, authorID: a.xxxxxx})
  */
-exports.checkAccess = function(padID, sessionCookie, token, password, callback)
+exports.checkAccess = thenify(function(padID, sessionCookie, token, password, callback)
 {
   var statusObject;
 
@@ -300,4 +301,4 @@ exports.checkAccess = function(padID, sessionCookie, token, password, callback)
 
     callback(null, statusObject);
   });
-};
+});