diff --git a/lib/foldermanagement/folderutil.inc.php b/lib/foldermanagement/folderutil.inc.php
index d8639a5..589bd4b 100644
--- a/lib/foldermanagement/folderutil.inc.php
+++ b/lib/foldermanagement/folderutil.inc.php
@@ -329,6 +329,9 @@ class KTFolderUtil {
             return PEAR::raiseError(_kt('Failure deleting folders.'));
         }
         
+        // purge caches
+        KTEntityUtil::clearAllCaches('Folder');   
+        
         // and store
         DBUtil::commit();