diff --git a/lib/core/option.py b/lib/core/option.py
index 98317f878..e2d83cb9b 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -1443,6 +1443,7 @@ def __setKnowledgeBaseAttributes(flushAll=True):
     kb.nullConnection = None
     kb.pageTemplate = None
     kb.pageTemplates = dict()
+    kb.previousMethod = None
     kb.orderByColumns = None
     kb.originalPage = None
     kb.originalTimeDelay = None