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-rw-r--r--django/contrib/postgres/fields/array.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/django/contrib/postgres/fields/array.py b/django/contrib/postgres/fields/array.py
index 1a969d7c0e..ab57ccb110 100644
--- a/django/contrib/postgres/fields/array.py
+++ b/django/contrib/postgres/fields/array.py
@@ -168,7 +168,7 @@ class ArrayContainsLookup(Lookup):
lhs, lhs_params = self.process_lhs(qn, connection)
rhs, rhs_params = self.process_rhs(qn, connection)
params = lhs_params + rhs_params
- type_cast = self.lhs.source.db_type(connection)
+ type_cast = self.lhs.output_field.db_type(connection)
return '%s @> %s::%s' % (lhs, rhs, type_cast), params