diff --git a/sso/admin.py b/sso/admin.py
index 1003dc3..084c10f 100644
--- a/sso/admin.py
+++ b/sso/admin.py
@@ -11,7 +11,7 @@ admin.site.register(Service, ServiceAdmin)
 
 class ServiceAccountAdmin(admin.ModelAdmin):
     list_display = ('service', 'service_uid', 'user', 'active')
-    search_fields = ['service_uid', 'user']
+    search_fields = ['service_uid', 'user__username']
 
 admin.site.register(ServiceAccount, ServiceAccountAdmin)