diff --git a/InvenTree/part/api.py b/InvenTree/part/api.py
index 05b94aef38..fbd2ad939b 100644
--- a/InvenTree/part/api.py
+++ b/InvenTree/part/api.py
@@ -1541,7 +1541,7 @@ part_api_urls = [
 
     # Base URL for PartCategory API endpoints
     url(r'^category/', include([
-        url(r'^tree/(?P<slug>[-\w]+)/', CategoryTree.as_view(), name='api-part-category-tree'),
+        url(r'^tree/', CategoryTree.as_view(), name='api-part-category-tree'),
         url(r'^parameters/', CategoryParameterList.as_view(), name='api-part-category-parameter-list'),
 
         url(r'^(?P<pk>\d+)/?', CategoryDetail.as_view(), name='api-part-category-detail'),
diff --git a/InvenTree/templates/js/dynamic/nav.js b/InvenTree/templates/js/dynamic/nav.js
index 34a445a913..7f3d789f41 100644
--- a/InvenTree/templates/js/dynamic/nav.js
+++ b/InvenTree/templates/js/dynamic/nav.js
@@ -152,7 +152,7 @@ function enableSidebar(label, options={}) {
     $('#tree').jstree({
         'core' : {
             'data' : {
-                'url' : '/api/part/category/tree/root/',
+                'url' : '/api/part/category/tree/',
                 'data' : function (node) { return { 'id' : node.id }; }
             }
         }