diff --git a/langchain/agents/agent.py b/langchain/agents/agent.py
index 29010663051..22e7667b6ba 100644
--- a/langchain/agents/agent.py
+++ b/langchain/agents/agent.py
@@ -199,7 +199,7 @@ class AgentExecutor(Chain, BaseModel):
     agent: Agent
     tools: List[Tool]
     return_intermediate_steps: bool = False
-    max_iterations: Optional[int] = None
+    max_iterations: Optional[int] = 15
     early_stopping_method: str = "force"
 
     @classmethod