diff --git a/osc/util/models.py b/osc/util/models.py
index ebcb8b40..28b21ef1 100644
--- a/osc/util/models.py
+++ b/osc/util/models.py
@@ -443,7 +443,7 @@ class BaseModel(metaclass=ModelMeta):
             value = getattr(self, name)
             if value is not None and field.is_model:
                 result[name] = value.dict()
-            if value is not None and field.is_model_list:
+            elif value is not None and field.is_model_list:
                 result[name] = [i.dict() for i in value]
             else:
                 result[name] = value