diff --git a/Lib/urllib/robotparser.py b/Lib/urllib/robotparser.py
index c58565e3945146..f1bd34565feaab 100644
--- a/Lib/urllib/robotparser.py
+++ b/Lib/urllib/robotparser.py
@@ -11,6 +11,7 @@
 """
 
 import collections
+import urllib.error
 import urllib.parse
 import urllib.request