diff --git a/python/lib/core/dmod/test/test_serializable_field_serializers.py b/python/lib/core/dmod/test/test_serializable_field_serializers.py
index 648df8bda..d01fd457d 100644
--- a/python/lib/core/dmod/test/test_serializable_field_serializers.py
+++ b/python/lib/core/dmod/test/test_serializable_field_serializers.py
@@ -277,3 +277,13 @@ def test_raises_runtime_error_too_few_params_N(self):
 
         with self.assertRaises(RuntimeError):
             o.dict()
+
+    def test_fixes_380(self):
+        class Model(Serializable):
+            field: int
+
+            class Config(Serializable.Config):
+                field_serializers = {"field": str}
+
+        m = Model(field=42)
+        self.assertDictEqual(m.dict(), {"field": "42"})