diff --git a/src/agents/agent.py b/src/agents/agent.py
index b67a12c0d..768d27ce2 100644
--- a/src/agents/agent.py
+++ b/src/agents/agent.py
@@ -253,7 +253,7 @@ def as_tool(
 
         @function_tool(
             name_override=tool_name or _transforms.transform_string_function_style(self.name),
-            description_override=tool_description or "",
+            description_override=tool_description or self.handoff_description,
         )
         async def run_agent(context: RunContextWrapper, input: str) -> str:
             from .run import Runner