diff --git a/django/db/models/sql/compiler.py b/django/db/models/sql/compiler.py
index d9161d820c..d4bd61d462 100644
--- a/django/db/models/sql/compiler.py
+++ b/django/db/models/sql/compiler.py
@@ -1,5 +1,4 @@
 import datetime
-import sys
 
 from django.conf import settings
 from django.core.exceptions import FieldError