diff --git a/ui/admin/app/components/form/target/details/index.hbs b/ui/admin/app/components/form/target/details/index.hbs
index 5b7f672ff..824d9f7de 100644
--- a/ui/admin/app/components/form/target/details/index.hbs
+++ b/ui/admin/app/components/form/target/details/index.hbs
@@ -4,6 +4,7 @@
 }}
 
 <Rose::Form
+  class={{unless @model.isNew 'full-width'}}
   @onSubmit={{@submit}}
   @cancel={{this.cancel}}
   @disabled={{@model.isSaving}}