diff --git a/js/apps/system/aardvark/frontend/js/arango/arango.js b/js/apps/system/aardvark/frontend/js/arango/arango.js
index 6a1daecea2..66ac399918 100644
--- a/js/apps/system/aardvark/frontend/js/arango/arango.js
+++ b/js/apps/system/aardvark/frontend/js/arango/arango.js
@@ -122,8 +122,9 @@ window.arangoHelper = {
     return val.substr(0, 1) === '_';
   },
 
-  collectionApiType: function (identifier) {
-    if (this.CollectionTypes[identifier] === undefined) {
+  collectionApiType: function (identifier, refresh) {
+    // set "refresh" to disable caching collection type
+    if (refresh || this.CollectionTypes[identifier] === undefined) {
       this.CollectionTypes[identifier] = window.arangoDocumentStore
       .getCollectionInfo(identifier).type;
     }
diff --git a/js/apps/system/aardvark/frontend/js/views/documentsView.js b/js/apps/system/aardvark/frontend/js/views/documentsView.js
index 91a302f8ae..abbc788391 100644
--- a/js/apps/system/aardvark/frontend/js/views/documentsView.js
+++ b/js/apps/system/aardvark/frontend/js/views/documentsView.js
@@ -331,7 +331,8 @@ var documentsView = Backbone.View.extend({
 
   addDocument: function () {
     var collid  = window.location.hash.split("/")[1];
-    var doctype = arangoHelper.collectionApiType(collid);
+    // second parameter is "true" to disable caching of collection type
+    var doctype = arangoHelper.collectionApiType(collid, true);
 
     if (doctype === 'edge') {
       $('#edgeCreateModal').modal('show');