diff --git a/packages/angular-material/example/app/app.component.ts b/packages/angular-material/example/app/app.component.ts
index eed608eb3..2a274a614 100644
--- a/packages/angular-material/example/app/app.component.ts
+++ b/packages/angular-material/example/app/app.component.ts
@@ -92,7 +92,7 @@ const itemTester: UISchemaTester = (_schema, schemaPath, _path) => {
 export class AppComponent {
   readonly renderers = angularMaterialRenderers;
   readonly examples = getExamples();
-  selectedExample: ExampleDescription|undefined;
+  selectedExample: ExampleDescription | undefined;
   i18n: JsonFormsI18nState;
   private dateAdapter;
   readonly = false;