diff --git a/apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py b/apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py
index 05015f758..cd17d4a10 100644
--- a/apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py
+++ b/apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py
@@ -257,7 +257,7 @@ class BaseChatStep(IChatStep):
                 self.context['execute_ids'] = []
                 for tool_id in tool_ids:
                     tool = QuerySet(Tool).filter(id=tool_id).first()
-                    if not tool.is_active:
+                    if tool is None or tool.is_active is False:
                         continue
                     executor = ToolExecutor(CONFIG.get('SANDBOX'))
                     if tool.init_params is not None: