diff --git a/packages/main/src/Dialog.hbs b/packages/main/src/Dialog.hbs
index 61542f0b863b..5f5f4ad63a8b 100644
--- a/packages/main/src/Dialog.hbs
+++ b/packages/main/src/Dialog.hbs
@@ -9,7 +9,7 @@
 			{{#if header.length }}
 				<slot name="header"></slot>
 			{{else}}
-				<h2 class="ui5-popup-header-text">{{headerText}}</h2>
+				<h2 id="ui5-popup-header-text" class="ui5-popup-header-text">{{headerText}}</h2>
 			{{/if}}
 		</header>
 	{{/if}}
diff --git a/packages/main/src/Dialog.js b/packages/main/src/Dialog.js
index 321ee178bca8..8581e60f907a 100644
--- a/packages/main/src/Dialog.js
+++ b/packages/main/src/Dialog.js
@@ -204,7 +204,7 @@ class Dialog extends Popup {
 	}
 
 	get _ariaLabelledBy() { // Required by Popup.js
-		return this.ariaLabel ? undefined : "ui5-popup-header";
+		return (this.ariaLabel || this.header.length) ? undefined : "ui5-popup-header-text";
 	}
 
 	get _ariaModal() { // Required by Popup.js