diff --git a/tutorials/building-a-client-node.mdx b/tutorials/building-a-client-node.mdx
index 9cc5ccc..ddfe90a 100644
--- a/tutorials/building-a-client-node.mdx
+++ b/tutorials/building-a-client-node.mdx
@@ -85,7 +85,6 @@ import { Client } from "@modelcontextprotocol/sdk/client/index.js";
 import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js";
 import Anthropic from "@anthropic-ai/sdk";
 import dotenv from "dotenv";
-import { Tool } from "@anthropic-ai/sdk/resources/messages.js";
 import {
   CallToolResultSchema,
   ListToolsResultSchema,
@@ -181,7 +180,7 @@ Now add the core functionality for processing queries and handling tool calls:
       ListToolsResultSchema
     );
 
-    const availableTools: Tool[] = toolsResponse.tools.map((tool: any) => ({
+    const availableTools = toolsResponse.tools.map((tool: any) => ({
       name: tool.name,
       description: tool.description,
       input_schema: tool.inputSchema,
@@ -211,7 +210,7 @@ Now add the core functionality for processing queries and handling tool calls:
               method: "tools/call",
               params: {
                 name: toolName,
-                args: toolArgs,
+                arguments: toolArgs,
               },
             },
             CallToolResultSchema