Index: branches/RC/core/units/categories/categories_tag_processor.php
===================================================================
diff -u -N -r9279 -r9339
--- branches/RC/core/units/categories/categories_tag_processor.php	(.../categories_tag_processor.php)	(revision 9279)
+++ branches/RC/core/units/categories/categories_tag_processor.php	(.../categories_tag_processor.php)	(revision 9339)
@@ -137,9 +137,14 @@
 		/* @var $object kDBItem */
 
 		$field = $this->SelectParam($params, 'name,field');
-		$params['cat_id'] = $object->GetDBField($field);
+		$category_id = $object->GetDBField($field);
 
-		return $this->CategoryPath($params);
+		if ($category_id) {
+			$params['cat_id'] = $category_id;
+			return $this->CategoryPath($params);
+		}
+
+		return '';
 	}
 
 	function CurrentCategoryName($params)