diff --git a/src/gui/accessible/qaccessiblecache.cpp b/src/gui/accessible/qaccessiblecache.cpp
index d9586519c78..3010ffdd2b4 100644
--- a/src/gui/accessible/qaccessiblecache.cpp
+++ b/src/gui/accessible/qaccessiblecache.cpp
@@ -48,18 +48,18 @@ QAccessibleCache *QAccessibleCache::instance()
 QAccessible::Id QAccessibleCache::acquireId() const
 {
     static const QAccessible::Id FirstId = QAccessible::Id(INT_MAX) + 1;
-    static QAccessible::Id lastUsedId = FirstId;
+    static QAccessible::Id nextId = FirstId;
 
-    while (idToInterface.contains(lastUsedId)) {
+    while (idToInterface.contains(nextId)) {
         // (wrap back when when we reach UINT_MAX - 1)
         // -1 because on Android -1 is taken for the "View" so just avoid it completely for consistency
-        if (lastUsedId == UINT_MAX - 1)
-            lastUsedId = FirstId;
+        if (nextId == UINT_MAX - 1)
+            nextId = FirstId;
         else
-            ++lastUsedId;
+            ++nextId;
     }
 
-    return lastUsedId;
+    return nextId++;
 }
 
 QAccessibleInterface *QAccessibleCache::interfaceForId(QAccessible::Id id) const
diff --git a/tests/auto/other/qaccessibility/tst_qaccessibility.cpp b/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
index 8479985c0e8..453f6b6fed2 100644
--- a/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
+++ b/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
@@ -211,6 +211,7 @@ private slots:
     void treeTest();
     void tableTest();
 
+    void uniqueIdTest();
     void calendarWidgetTest();
     void dockWidgetTest();
     void comboBoxTest();
@@ -3385,6 +3386,25 @@ void tst_QAccessibility::tableTest()
     QTestAccessibility::clearEvents();
 }
 
+void tst_QAccessibility::uniqueIdTest()
+{
+    // Test that an ID isn't reassigned to another interface right away when an accessible interface
+    // that has just been created is removed from the cache and deleted before the next
+    // accessible interface is registered.
+    // For example for AT-SPI, that would result in the same object path being used, and thus
+    // data from the old and new interface can get confused due to caching.
+    QWidget widget1;
+    QAccessibleInterface *iface1 = QAccessible::queryAccessibleInterface(&widget1);
+    QAccessible::Id id1 = QAccessible::uniqueId(iface1);
+    QAccessible::deleteAccessibleInterface(id1);
+
+    QWidget widget2;
+    QAccessibleInterface *iface2 = QAccessible::queryAccessibleInterface(&widget2);
+    QAccessible::Id id2 = QAccessible::uniqueId(iface2);
+
+    QVERIFY(id1 != id2);
+}
+
 void tst_QAccessibility::calendarWidgetTest()
 {
 #if QT_CONFIG(calendarwidget)