diff --git a/libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py b/libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py
index 6b359f201..dcd777d34 100644
--- a/libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py
+++ b/libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py
@@ -1226,8 +1226,10 @@ def create_react_agent(
             elif version == "v2":
                 if post_model_hook is not None:
                     return "post_model_hook"
+                # Create a temporary ToolExecutor to inject tool arguments
+                temp_executor = ToolExecutor(tool_classes[0]) if tool_classes else None
                 tool_calls = [
-                    tool_node.inject_tool_args(call, state, store)  # type: ignore[arg-type]
+                    temp_executor.inject_tool_args(call, state, store) if temp_executor else call  # type: ignore[arg-type]
                     for call in last_message.tool_calls
                 ]
                 return [Send(call["name"], call) for call in tool_calls]
@@ -1392,3 +1394,4 @@ __all__ = [
     "AgentStateWithStructuredResponse",
     "AgentStateWithStructuredResponsePydantic",
 ]
+