diff --git a/src/material-examples/autocomplete-filter/autocomplete-filter-example.ts b/src/material-examples/autocomplete-filter/autocomplete-filter-example.ts
index 089b6c98f8c..a324849a7f7 100644
--- a/src/material-examples/autocomplete-filter/autocomplete-filter-example.ts
+++ b/src/material-examples/autocomplete-filter/autocomplete-filter-example.ts
@@ -33,7 +33,7 @@ export class AutocompleteFilterExample {
 
   filter(val: string): string[] {
     return this.options.filter(option =>
-      option.toLowerCase().indexOf(val.toLowerCase()) === 0);
+      option.toLowerCase().includes(val.toLowerCase()));
   }
 
 }