diff --git a/packages/overlayscrollbars-ngx/example/src/app/app.component.html b/packages/overlayscrollbars-ngx/example/src/app/app.component.html
index 06b4d973..1d191de1 100644
--- a/packages/overlayscrollbars-ngx/example/src/app/app.component.html
+++ b/packages/overlayscrollbars-ngx/example/src/app/app.component.html
@@ -65,9 +65,9 @@ <h2>Component</h2>
 
             <div class="buttons">
                 <button (click)="onBtnScrollRandom($event, [ osComponentRef1, osComponentRef2 ])">Scroll</button>
-                <button (click)="onBtnChangeOptions($event)">Change Options</button>
-                <button (click)="onBtnChangeContent($event)">Change Content</button>
-                <button (click)="onBtnLog($event)">Log</button>
+                <button (click)="onBtnChangeOptions()">Change Options</button>
+                <button (click)="onBtnChangeContent()">Change Content</button>
+                <button (click)="onBtnLog()">Log</button>
             </div>
         </div>
     </div>