diff --git a/src/gui/vulkan/qvulkanwindow.cpp b/src/gui/vulkan/qvulkanwindow.cpp
index ee49cf0999b..cb89b0b1e6a 100644
--- a/src/gui/vulkan/qvulkanwindow.cpp
+++ b/src/gui/vulkan/qvulkanwindow.cpp
@@ -1602,7 +1602,7 @@ bool QVulkanWindow::event(QEvent *e)
 
     \since 5.15
  */
-void QVulkanWindow::setQueueCreateInfoModifier(QueueCreateInfoModifier modifier)
+void QVulkanWindow::setQueueCreateInfoModifier(const QueueCreateInfoModifier &modifier)
 {
     Q_D(QVulkanWindow);
     d->queueCreateInfoModifier = modifier;
diff --git a/src/gui/vulkan/qvulkanwindow.h b/src/gui/vulkan/qvulkanwindow.h
index 511b9501bd4..a2d1c9995ce 100644
--- a/src/gui/vulkan/qvulkanwindow.h
+++ b/src/gui/vulkan/qvulkanwindow.h
@@ -106,7 +106,7 @@ public:
     typedef std::function<void(const VkQueueFamilyProperties *,
                                uint32_t,
                                QVector<VkDeviceQueueCreateInfo> &)> QueueCreateInfoModifier;
-    void setQueueCreateInfoModifier(QueueCreateInfoModifier modifier);
+    void setQueueCreateInfoModifier(const QueueCreateInfoModifier &modifier);
 
     bool isValid() const;