diff --git a/lib/features/modeling/BpmnFactory.js b/lib/features/modeling/BpmnFactory.js
index 6454e7a0..a9cda403 100644
--- a/lib/features/modeling/BpmnFactory.js
+++ b/lib/features/modeling/BpmnFactory.js
@@ -4,8 +4,6 @@ var _ = require('lodash');
 
 var BpmnModdle = require('bpmn-moddle');
 
-var Collections = require('diagram-js/lib/util/Collections');
-
 
 function BpmnFactory() {
   this._model = BpmnModdle.instance();