diff --git a/helpers.md b/helpers.md
index f24792ad..5e5e5dcd 100644
--- a/helpers.md
+++ b/helpers.md
@@ -162,7 +162,7 @@ async with stdio_client(StdioServerParameters(command="mcp-server")) as (read, w
         await mcp_client.initialize()
 
         tools_result = await mcp_client.list_tools()
-        runner = await client.beta.messages.tool_runner(
+        runner = client.beta.messages.tool_runner(
             model="claude-sonnet-4-20250514",
             max_tokens=1024,
             messages=[{"role": "user", "content": "Use the available tools"}],
diff --git a/src/anthropic/lib/tools/mcp.py b/src/anthropic/lib/tools/mcp.py
index faf2023d..408020cb 100644
--- a/src/anthropic/lib/tools/mcp.py
+++ b/src/anthropic/lib/tools/mcp.py
@@ -409,7 +409,7 @@ def async_mcp_tool(
         from anthropic.lib.tools.mcp import async_mcp_tool
 
         tools_result = await mcp_client.list_tools()
-        runner = await client.beta.messages.tool_runner(
+        runner = client.beta.messages.tool_runner(
             model="claude-sonnet-4-20250514",
             max_tokens=1024,
             tools=[async_mcp_tool(t, mcp_client) for t in tools_result.tools],