diff --git a/src/corelib/kernel/qcore_mac_p.h b/src/corelib/kernel/qcore_mac_p.h
index 0000f3b656..7633b7420c 100644
--- a/src/corelib/kernel/qcore_mac_p.h
+++ b/src/corelib/kernel/qcore_mac_p.h
@@ -113,6 +113,9 @@ kern_return_t IOObjectRelease(io_object_t object);
 Q_FORWARD_DECLARE_OBJC_CLASS(NSObject);
 Q_FORWARD_DECLARE_OBJC_CLASS(NSString);
 
+// @compatibility_alias doesn't work with categories or their methods
+#define QtExtras QT_MANGLE_NAMESPACE(QtExtras)
+
 QT_BEGIN_NAMESPACE
 template <typename T, typename U, auto RetainFunction, auto ReleaseFunction>
 class QAppleRefCounted
diff --git a/src/gui/painting/qcoregraphics_p.h b/src/gui/painting/qcoregraphics_p.h
index db012d3cda..04494cd514 100644
--- a/src/gui/painting/qcoregraphics_p.h
+++ b/src/gui/painting/qcoregraphics_p.h
@@ -72,6 +72,11 @@ Q_GUI_EXPORT CGBitmapInfo qt_mac_bitmapInfoForImage(const QImage &image);
 Q_GUI_EXPORT QPixmap qt_mac_toQPixmap(const NSImage *image, const QSizeF &size);
 
 QT_END_NAMESPACE
+
+// @compatibility_alias doesn't work with categories or their methods
+#define imageFromQImage QT_MANGLE_NAMESPACE(imageFromQImage)
+#define imageFromQIcon QT_MANGLE_NAMESPACE(imageFromQIcon)
+
 @interface NSImage (QtExtras)
 + (instancetype)imageFromQImage:(const QT_PREPEND_NAMESPACE(QImage) &)image;
 + (instancetype)imageFromQIcon:(const QT_PREPEND_NAMESPACE(QIcon) &)icon;
diff --git a/src/plugins/platforms/cocoa/qcocoascreen.h b/src/plugins/platforms/cocoa/qcocoascreen.h
index 57b1212440..e1596f65eb 100644
--- a/src/plugins/platforms/cocoa/qcocoascreen.h
+++ b/src/plugins/platforms/cocoa/qcocoascreen.h
@@ -143,6 +143,10 @@ QDebug operator<<(QDebug debug, const QCocoaScreen *screen);
 QT_END_NAMESPACE
 
 #if defined(__OBJC__)
+
+// @compatibility_alias doesn't work with categories or their methods
+#define qt_displayId QT_MANGLE_NAMESPACE(qt_displayId)
+
 @interface NSScreen (QtExtras)
 @property(readonly) CGDirectDisplayID qt_displayId;
 @end