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-rw-r--r--lib/sqlalchemy/sql/clause_compare.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/clause_compare.py b/lib/sqlalchemy/sql/clause_compare.py
index 87f9fb2df..0ea981f1e 100644
--- a/lib/sqlalchemy/sql/clause_compare.py
+++ b/lib/sqlalchemy/sql/clause_compare.py
@@ -228,7 +228,7 @@ class StructureComparatorStrategy(object):
def compare_label(self, elements, left, right, **kw):
return left._type._compare_type_affinity(right._type) and (
left.name == right.name
- if not isinstance(left, elements._anonymous_label)
+ if not isinstance(left.name, elements._anonymous_label)
else isinstance(right.name, elements._anonymous_label)
)