diff --git a/backend/templates/py/model.jinja b/backend/templates/py/model.jinja
index 306d73de..c57e562a 100644
--- a/backend/templates/py/model.jinja
+++ b/backend/templates/py/model.jinja
@@ -50,5 +50,10 @@ class {{ table_name_class }}({% if have_datetime_column %}Base{% else %}MappedBa
                 ''
             {%- endif -%}
         {%- endif -%}
-    {%- endif -%}{% if model.sort != 0 %}, sort_order={{ model.sort }}{% endif %}, comment='{{ model.comment }}')
+    {%- endif -%}{% if model.sort != 0 %}, sort_order={{ model.sort }}{% endif %}, comment=
+    {%- if model.comment != None -%}
+        {{ model.comment }})
+    {%- else -%}
+        None)
+    {%- endif -%}
     {% endfor %}