diff --git a/src/gui/painting/qcoregraphics.mm b/src/gui/painting/qcoregraphics.mm
index b5620535fb..94ba004c93 100644
--- a/src/gui/painting/qcoregraphics.mm
+++ b/src/gui/painting/qcoregraphics.mm
@@ -151,32 +151,47 @@ QT_END_NAMESPACE
 
     return [nsImage autorelease];
 }
-@end
 
-QT_BEGIN_NAMESPACE
++ (instancetype)imageFromQIcon:(const QIcon &)icon
+{
+    return [NSImage imageFromQIcon:icon withSize:0];
+}
 
-NSImage *qt_mac_create_nsimage(const QIcon &icon, int defaultSize)
++ (instancetype)imageFromQIcon:(const QIcon &)icon withSize:(int)size
 {
     if (icon.isNull())
         return nil;
 
-    NSImage *nsImage = [[NSImage alloc] init];
-    QList<QSize> availableSizes = icon.availableSizes();
-    if (availableSizes.isEmpty() && defaultSize > 0)
-        availableSizes << QSize(defaultSize, defaultSize);
+    auto nsImage = [[NSImage alloc] initWithSize:NSZeroSize];
+
+    auto availableSizes = icon.availableSizes();
+    if (availableSizes.isEmpty() && size > 0)
+        availableSizes << QSize(size, size);
+
     for (QSize size : qAsConst(availableSizes)) {
-        QPixmap pm = icon.pixmap(size);
-        if (pm.isNull())
+        QImage image = icon.pixmap(size).toImage();
+        if (image.isNull())
             continue;
-        QImage image = pm.toImage();
-        CGImageRef cgImage = qt_mac_toCGImage(image);
-        NSBitmapImageRep *imageRep = [[NSBitmapImageRep alloc] initWithCGImage:cgImage];
-        [nsImage addRepresentation:imageRep];
-        [imageRep release];
-        CGImageRelease(cgImage);
+
+        QCFType<CGImageRef> cgImage = image.toCGImage();
+        if (!cgImage)
+            continue;
+
+        auto *imageRep = [[NSBitmapImageRep alloc] initWithCGImage:cgImage];
+        imageRep.size = (image.size() / image.devicePixelRatioF()).toCGSize();
+        [nsImage addRepresentation:[imageRep autorelease]];
     }
-    return nsImage;
+
+    [nsImage setTemplate:icon.isMask()];
+
+    if (size)
+        nsImage.size = CGSizeMake(size, size);
+
+    return [nsImage autorelease];
 }
+@end
+
+QT_BEGIN_NAMESPACE
 
 QPixmap qt_mac_toQPixmap(const NSImage *image, const QSizeF &size)
 {
diff --git a/src/gui/painting/qcoregraphics_p.h b/src/gui/painting/qcoregraphics_p.h
index e1697b0f38..db012d3cda 100644
--- a/src/gui/painting/qcoregraphics_p.h
+++ b/src/gui/painting/qcoregraphics_p.h
@@ -69,12 +69,13 @@ QT_BEGIN_NAMESPACE
 Q_GUI_EXPORT CGBitmapInfo qt_mac_bitmapInfoForImage(const QImage &image);
 
 #ifdef HAVE_APPKIT
-Q_GUI_EXPORT NSImage *qt_mac_create_nsimage(const QIcon &icon, int defaultSize = 0);
 Q_GUI_EXPORT QPixmap qt_mac_toQPixmap(const NSImage *image, const QSizeF &size);
 
 QT_END_NAMESPACE
 @interface NSImage (QtExtras)
 + (instancetype)imageFromQImage:(const QT_PREPEND_NAMESPACE(QImage) &)image;
++ (instancetype)imageFromQIcon:(const QT_PREPEND_NAMESPACE(QIcon) &)icon;
++ (instancetype)imageFromQIcon:(const QT_PREPEND_NAMESPACE(QIcon) &)icon withSize:(int)size;
 @end
 QT_BEGIN_NAMESPACE
 
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.mm b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
index c35cf6d799..5aa41eeb22 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
@@ -341,13 +341,7 @@ NSMenuItem *QCocoaMenuItem::sync()
         m_native.keyEquivalentModifierMask = NSEventModifierFlagCommand;
     }
 
-    NSImage *img = nil;
-    if (!m_icon.isNull()) {
-        img = qt_mac_create_nsimage(m_icon, m_iconSize);
-        img.size = CGSizeMake(m_iconSize, m_iconSize);
-    }
-    m_native.image = img;
-    [img release];
+    m_native.image = [NSImage imageFromQIcon:m_icon withSize:m_iconSize];
 
     m_native.state = m_checked ?  NSOnState : NSOffState;
     return m_native;
diff --git a/src/plugins/platforms/cocoa/qcocoasystemtrayicon.mm b/src/plugins/platforms/cocoa/qcocoasystemtrayicon.mm
index d8caf92a5c..1d4b84ee5e 100644
--- a/src/plugins/platforms/cocoa/qcocoasystemtrayicon.mm
+++ b/src/plugins/platforms/cocoa/qcocoasystemtrayicon.mm
@@ -272,12 +272,7 @@ void QCocoaSystemTrayIcon::showMessage(const QString &title, const QString &mess
     NSUserNotification *notification = [[NSUserNotification alloc] init];
     notification.title = [NSString stringWithUTF8String:title.toUtf8().data()];
     notification.informativeText = [NSString stringWithUTF8String:message.toUtf8().data()];
-
-    if (!icon.isNull()) {
-        auto *nsimage = qt_mac_create_nsimage(icon);
-        [nsimage setTemplate:icon.isMask()];
-        notification.contentImage = [nsimage autorelease];
-    }
+    notification.contentImage = [NSImage imageFromQIcon:icon];
 
     NSUserNotificationCenter *center = NSUserNotificationCenter.defaultUserNotificationCenter;
     center.delegate = m_sys->item;