diff --git a/opendevin/controller/agent_controller.py b/opendevin/controller/agent_controller.py
index 7e880b974a..4b84b00362 100644
--- a/opendevin/controller/agent_controller.py
+++ b/opendevin/controller/agent_controller.py
@@ -377,3 +377,7 @@ class AgentController:
                 return True
 
         return False
+
+    # add destructor to cleanup resources
+    def __del__(self):
+        self.browser.close()