diff --git a/api/core/plugin/impl/base.py b/api/core/plugin/impl/base.py
index e26a04e71ae..f8d8dbfc981 100644
--- a/api/core/plugin/impl/base.py
+++ b/api/core/plugin/impl/base.py
@@ -380,8 +380,8 @@ class BasePluginClient:
                 if rep.code == -500:
                     try:
                         error = PluginDaemonError.model_validate(json.loads(rep.message))
-                    except Exception:
-                        raise PluginDaemonInnerError(code=rep.code, message=rep.message)
+                    except Exception as e:
+                        raise PluginDaemonInnerError(code=rep.code, message=rep.message) from e
 
                     logger.error("Error in stream response for plugin %s", rep.__dict__)
                     self._handle_plugin_daemon_error(error.error_type, error.message)