diff --git a/doc/python_api/sphinx_doc_gen.py b/doc/python_api/sphinx_doc_gen.py
index 1261ab7590a..ee9b9df5bef 100644
--- a/doc/python_api/sphinx_doc_gen.py
+++ b/doc/python_api/sphinx_doc_gen.py
@@ -81,7 +81,7 @@ import sys
 import inspect
 import shutil
 import logging
-import warning
+import warnings
 
 from textwrap import indent