diff --git a/templates/dotnet/Package/Models/Model.cs.twig b/templates/dotnet/Package/Models/Model.cs.twig
index d8689e54a..bb4dc24b9 100644
--- a/templates/dotnet/Package/Models/Model.cs.twig
+++ b/templates/dotnet/Package/Models/Model.cs.twig
@@ -70,7 +70,7 @@ namespace {{ spec.title | caseUcfirst }}.Models
                 {%~ endif %}
             {%~ endfor %}
             {%- if definition.additionalProperties %}
-                , data: map
+            data: map
             {%- endif ~%}
         );