diff --git a/core/tools/callTool.ts b/core/tools/callTool.ts
index c1d2039728c..faec8a94b8c 100644
--- a/core/tools/callTool.ts
+++ b/core/tools/callTool.ts
@@ -1,3 +1,4 @@
+import { CallToolResultSchema } from "@modelcontextprotocol/sdk/types.js";
 import { ContextItem, Tool, ToolCall, ToolExtras } from "..";
 import { MCPManagerSingleton } from "../context/mcp/MCPManagerSingleton";
 import { canParseUrl } from "../util/url";
@@ -87,10 +88,14 @@ async function callToolFromUri(
       if (!client) {
         throw new Error("MCP connection not found");
       }
-      const response = await client.client.callTool({
-        name: toolName,
-        arguments: args,
-      });
+      const response = await client.client.callTool(
+        {
+          name: toolName,
+          arguments: args,
+        },
+        CallToolResultSchema,
+        { timeout: client.options.timeout },
+      );
 
       if (response.isError === true) {
         throw new Error(JSON.stringify(response.content));