diff --git a/third_party/2and3/dateutil/tz/__init__.pyi b/third_party/2and3/dateutil/tz/__init__.pyi
index 68cfb9e2b..1ef0c4270 100644
--- a/third_party/2and3/dateutil/tz/__init__.pyi
+++ b/third_party/2and3/dateutil/tz/__init__.pyi
@@ -10,3 +10,5 @@ from .tz import (
     datetime_exists as datetime_exists,
     datetime_ambiguous as datetime_ambiguous,
 )
+
+UTC: tzutc