diff --git a/libs/community/langchain_community/agent_toolkits/openapi/planner.py b/libs/community/langchain_community/agent_toolkits/openapi/planner.py
index fbd3fc36b43..eb2c0efe4c6 100644
--- a/libs/community/langchain_community/agent_toolkits/openapi/planner.py
+++ b/libs/community/langchain_community/agent_toolkits/openapi/planner.py
@@ -356,7 +356,7 @@ def _create_api_controller_tool(
         for endpoint_name in endpoint_names:
             found_match = False
             for name, _, docs in api_spec.endpoints:
-                regex_name = re.compile(re.sub("\{.*?\}", ".*", name))
+                regex_name = re.compile(re.sub("\\{.*?\\}", ".*", name))
                 if regex_name.match(endpoint_name):
                     found_match = True
                     docs_str += f"== Docs for {endpoint_name} == \n{yaml.dump(docs)}\n"