diff --git a/aio/content/examples/component-styles/src/app/hero-details.component.css b/aio/content/examples/component-styles/src/app/hero-details.component.css
index 7c381aa8d2..e7918b5b16 100644
--- a/aio/content/examples/component-styles/src/app/hero-details.component.css
+++ b/aio/content/examples/component-styles/src/app/hero-details.component.css
@@ -23,7 +23,7 @@
 /* #enddocregion hostcontext */
 
 /* #docregion deep */
-:host /deep/ h3 {
+:host ::ng-deep h3 {
   font-style: italic;
 }
 /* #enddocregion deep */