diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index afa3438b682..7d8539bcdbc 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -11801,6 +11801,9 @@ QString QWidget::whatsThis() const
 void QWidget::setAccessibleName(const QString &name)
 {
     Q_D(QWidget);
+    if (d->accessibleName == name)
+        return;
+
     d->accessibleName = name;
     QAccessibleEvent event(this, QAccessible::NameChanged);
     QAccessible::updateAccessibility(&event);
@@ -11831,6 +11834,9 @@ QString QWidget::accessibleName() const
 void QWidget::setAccessibleDescription(const QString &description)
 {
     Q_D(QWidget);
+    if (d->accessibleDescription == description)
+        return;
+
     d->accessibleDescription = description;
     QAccessibleEvent event(this, QAccessible::DescriptionChanged);
     QAccessible::updateAccessibility(&event);
@@ -11856,6 +11862,9 @@ QString QWidget::accessibleDescription() const
 void QWidget::setAccessibleIdentifier(const QString &identifier)
 {
     Q_D(QWidget);
+    if (d->accessibleIdentifier == identifier)
+        return;
+
     d->accessibleIdentifier = identifier;
     QAccessibleEvent event(this, QAccessible::IdentifierChanged);
     QAccessible::updateAccessibility(&event);
diff --git a/tests/auto/other/qaccessibility/tst_qaccessibility.cpp b/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
index 5eb331b9300..09ce243145c 100644
--- a/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
+++ b/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
@@ -669,6 +669,13 @@ void tst_QAccessibility::accessibleIdentifier()
     QVERIFY(QTestAccessibility::containsEvent(&event));
     QCOMPARE(button.accessibleIdentifier(), id);
     QCOMPARE(QAccessibleBridgeUtils::accessibleId(accessible), id);
+    QTestAccessibility::clearEvents();
+
+    // verify that no event gets triggered when setting the same ID again
+    button.setAccessibleIdentifier(id);
+    QVERIFY(QTestAccessibility::events().empty());
+    QCOMPARE(button.accessibleIdentifier(), id);
+    QCOMPARE(QAccessibleBridgeUtils::accessibleId(accessible), id);
 
     QTestAccessibility::clearEvents();
 }