diff --git a/packages/schemas/docs/02-layouts.md b/packages/schemas/docs/02-layouts.md
index ff8c91ba08..40948238fd 100644
--- a/packages/schemas/docs/02-layouts.md
+++ b/packages/schemas/docs/02-layouts.md
@@ -189,6 +189,8 @@ Fieldset::make('Label')
     ])
 ```
 
+<UtilityInjection set="schemaComponents" version="4.x">As well as allowing a static value, the `contained()` method also accepts a function to dynamically calculate it. You can inject various utilities into the function as parameters.</UtilityInjection>
+
 <AutoScreenshot name="schemas/layout/fieldset/not-contained" alt="Fieldset without a container border" version="4.x" />
 
 ## Using container queries