diff --git a/astrbot/core/provider/manager.py b/astrbot/core/provider/manager.py
index d702fe156..811b02e15 100644
--- a/astrbot/core/provider/manager.py
+++ b/astrbot/core/provider/manager.py
@@ -71,6 +71,8 @@ class ProviderManager():
             self.selected_default_persona = Personality(
                 prompt="You are a helpful and friendly assistant.",
                 name="default",
+                _begin_dialogs_processed=[],
+                _mood_imitation_dialogs_processed=""
             )
             self.personas.append(self.selected_default_persona)