diff --git a/contrib/plugins/murano_exampleplugin/example-app/io.murano.apps.demo.DemoApp/Classes/ImageValidatorMixin.yaml b/contrib/plugins/murano_exampleplugin/example-app/io.murano.apps.demo.DemoApp/Classes/ImageValidatorMixin.yaml
index c5a2319a6..bdd4cbe94 100644
--- a/contrib/plugins/murano_exampleplugin/example-app/io.murano.apps.demo.DemoApp/Classes/ImageValidatorMixin.yaml
+++ b/contrib/plugins/murano_exampleplugin/example-app/io.murano.apps.demo.DemoApp/Classes/ImageValidatorMixin.yaml
@@ -1,6 +1,7 @@
 Namespaces:
   =: io.murano.apps.example.plugin
   res: io.murano.resources
+  std: io.murano
 
 Name: ImageValidatorMixin