diff --git a/tools/build_api.py b/tools/build_api.py
index e18b7f4ad9a..28c6007e135 100644
--- a/tools/build_api.py
+++ b/tools/build_api.py
@@ -17,7 +17,6 @@
 from __future__ import print_function, division, absolute_import
 
 import re
-import tempfile
 import datetime
 import uuid
 import struct