diff --git a/frontend-js/src/main/js/gui/AbstractGuiElement.js b/frontend-js/src/main/js/gui/AbstractGuiElement.js
index 95a72bfd8f964fe589c8d764a06b0d91fbbf89b8..b859caede9c7adb19bd2abff6323d3f55b38429f 100644
--- a/frontend-js/src/main/js/gui/AbstractGuiElement.js
+++ b/frontend-js/src/main/js/gui/AbstractGuiElement.js
@@ -12,7 +12,7 @@ var logger = require('../logger');
  *
  * @param {Object} params
  * @param {HTMLElement} params.element
- * @param {CustomMap} params.customMap
+ * @param {CustomMap} [params.customMap]
  * @param {Configuration} params.configuration
  * @param {Project} [params.project]
  * @param {ServerConnector} [params.serverConnector]
@@ -44,9 +44,6 @@ AbstractGuiElement.prototype.constructor = AbstractGuiElement;
  * @param {CustomMap} map
  */
 AbstractGuiElement.prototype.setMap = function (map) {
-  if (map === undefined) {
-    throw new Error("map must be defined");
-  }
   this._map = map;
 };