diff --git a/source/application/models/oxmanufacturerlist.php b/source/application/models/oxmanufacturerlist.php
index <HASH>..<HASH> 100644
--- a/source/application/models/oxmanufacturerlist.php
+++ b/source/application/models/oxmanufacturerlist.php
@@ -123,7 +123,7 @@ class oxManufacturerList extends oxList
         foreach ($this as $sVndId => $oManufacturer) {
 
             // storing active manufacturer object
-            if ($sVndId == $sActCat) {
+            if ($sVndId === $sActCat) {
                 $this->setClickManufacturer($oManufacturer);
             }
<I> Compare vendor and category id's more strictly in manufacturer tree building

Related with bug: <URL>