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-rw-r--r--django/db/models/sql/where.py6
1 files changed, 3 insertions, 3 deletions
diff --git a/django/db/models/sql/where.py b/django/db/models/sql/where.py
index c8857a01fe..3e8bfed087 100644
--- a/django/db/models/sql/where.py
+++ b/django/db/models/sql/where.py
@@ -51,12 +51,12 @@ class WhereNode(tree.Node):
format = '(%s)'
elif isinstance(child, tree.Node):
sql, params = self.as_sql(child, qn)
- if len(child.children) == 1:
+ if child.negated:
+ format = 'NOT (%s)'
+ elif len(child.children) == 1:
format = '%s'
else:
format = '(%s)'
- if child.negated:
- format = 'NOT %s' % format
else:
sql, params = self.make_atom(child, qn)
format = '%s'