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-rw-r--r--django/db/models/sql/query.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/django/db/models/sql/query.py b/django/db/models/sql/query.py
index 8fffce5dec..e3e6100f24 100644
--- a/django/db/models/sql/query.py
+++ b/django/db/models/sql/query.py
@@ -1444,7 +1444,7 @@ class Query(BaseExpression):
# DEFAULT_DB_ALIAS isn't nice but it's the best that can be done here.
# A similar thing is done in is_nullable(), too.
if (
- lookup_name == "exact"
+ lookup_name in ("exact", "iexact")
and lookup.rhs == ""
and connections[DEFAULT_DB_ALIAS].features.interprets_empty_strings_as_nulls
):