diff --git a/lib/xos-genx/xosgenx/targets/service.xtarget b/lib/xos-genx/xosgenx/targets/service.xtarget
index ed78ff1..7b40110 100644
--- a/lib/xos-genx/xosgenx/targets/service.xtarget
+++ b/lib/xos-genx/xosgenx/targets/service.xtarget
@@ -56,6 +56,10 @@
       app_label = {{ xproto_first_non_empty([m.options.app_label, options.app_label, options.name, "Set an app label in your xproto!"]) | lower}}
       # name = {{ xproto_first_non_empty([m.options.name, options.name, "Set a name in your xproto!"]) }}
       verbose_name = "{{ xproto_unquote(xproto_first_non_empty([m.options.verbose_name, m.name])) }}"
+  {%- set uniques = xproto_field_graph_components(m.fields) %}
+  {%- if uniques %}
+      unique_together = {{ xproto_tuplify(uniques) }}
+  {%- endif %}
 
   # Primitive Fields (Not Relations)
   {% for f in m.fields %}