diff --git a/tests/res/expected/sandbox/test/googlestruct_dc.py b/tests/res/expected/sandbox/test/googlestruct_dc.py
index f620b06..3398252 100644
--- a/tests/res/expected/sandbox/test/googlestruct_dc.py
+++ b/tests/res/expected/sandbox/test/googlestruct_dc.py
@@ -22,5 +22,5 @@
 @dataclasses.dataclass
 class StructMessage(plasm.DataclassBase):
     __proto_cls__ = pb2.StructMessage
-    my_struct: typing.Dict[str, typing.Any] = dataclasses.field(default_factory=dict, metadata={'dictator': dictators.StructDictator, 'is_struct': True})
+    my_struct: typing.Dict[str, typing.Any] = dataclasses.field(default_factory=dict, metadata={'dictator': dictators.StructDictator})