diff --git a/packages/main/test/samples/Toast.sample.html b/packages/main/test/samples/Toast.sample.html
index 0da489767cc3..51933d11e5a0 100644
--- a/packages/main/test/samples/Toast.sample.html
+++ b/packages/main/test/samples/Toast.sample.html
@@ -154,7 +154,7 @@ <h3>Toast Placements</h3>
 <script>
 
 	// Attaching click listeners to the buttons which show the toasts
-	document.querySelectorAll("ui5-button").forEach(function(button){
+	Array.from(document.querySelectorAll("ui5-button")).forEach(button => {
 		button.addEventListener('click', function () {
 			document.querySelector("#" + button.id.replace("BtnShow", "")).show();
 		});
@@ -167,7 +167,7 @@ <h3>Toast Placements</h3>
 <script>
 
 	// Attaching click listeners to the buttons which show the toasts
-	document.querySelectorAll("ui5-button").forEach(function(button){
+	[].slice.call(document.querySelectorAll("ui5-button")).forEach(function(button){
 		button.addEventListener('click', function () {
 			document.querySelector("#" + button.id.replace("BtnShow", "")).show();
 		});