diff --git a/astrbot/core/provider/func_tool_manager.py b/astrbot/core/provider/func_tool_manager.py
index a54782c3c..d7b0ca4b1 100644
--- a/astrbot/core/provider/func_tool_manager.py
+++ b/astrbot/core/provider/func_tool_manager.py
@@ -487,7 +487,7 @@ class FuncCall:
             {
                 "name": f.name,
                 "description": f.description,
-                **({"parameters": convert_schema(f.parameters)} if convert_schema(f.parameters) else {})
+                **({"parameters": convert_schema(f.parameters)})
             }
             for f in self.func_list if f.active
         ]