diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.h b/src/plugins/platforms/cocoa/qcocoahelpers.h
index 62930ac0766..8e807cc2888 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.h
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.h
@@ -69,7 +69,7 @@ inline QString qt_mac_NSStringToQString(const NSString *nsstr)
 { return QCFString::toQString(reinterpret_cast<const CFStringRef>(nsstr)); }
 
 inline NSString *qt_mac_QStringToNSString(const QString &qstr)
-{ return [reinterpret_cast<const NSString *>(QCFString::toCFStringRef(qstr)) autorelease]; }
+{ return [const_cast<NSString *>(reinterpret_cast<const NSString *>(QCFString::toCFStringRef(qstr))) autorelease]; }
 
 CGImageRef qt_mac_image_to_cgimage(const QImage &image);
 NSImage *qt_mac_cgimage_to_nsimage(CGImageRef iamge);
diff --git a/src/plugins/platforms/cocoa/qcocoamenuloader.h b/src/plugins/platforms/cocoa/qcocoamenuloader.h
index 9f3a31e3bcc..2fcda512f09 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuloader.h
+++ b/src/plugins/platforms/cocoa/qcocoamenuloader.h
@@ -53,8 +53,8 @@
 // We mean it.
 //
 
-#include <QtCore/private/qcore_mac_p.h>
 #import <Cocoa/Cocoa.h>
+#include <QtCore/private/qcore_mac_p.h>
 
 @interface QT_MANGLE_NAMESPACE(QCocoaMenuLoader) : NSResponder
 {
diff --git a/src/plugins/platforms/cocoa/qcocoamenuloader.mm b/src/plugins/platforms/cocoa/qcocoamenuloader.mm
index 52aefcb9bff..353808655fb 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuloader.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuloader.mm
@@ -92,7 +92,7 @@ void qt_mac_loadMenuNib(QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *qtMenuLoader)
     }
 
     // Load and instantiate nib file from temp
-    NSURL *nibUrl = [NSURL fileURLWithPath : reinterpret_cast<const NSString *>(QCFString::toCFStringRef(nibDir))];
+    NSURL *nibUrl = [NSURL fileURLWithPath : const_cast<NSString *>(reinterpret_cast<const NSString *>(QCFString::toCFStringRef(nibDir)))];
     [nibUrl autorelease];
     NSNib *nib = [[NSNib alloc] initWithContentsOfURL : nibUrl];
     [nib autorelease];
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index ef04fc42381..7e4d4217ef8 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -133,7 +133,7 @@ void QCocoaWindow::setVisible(bool visible)
 void QCocoaWindow::setWindowTitle(const QString &title)
 {
     CFStringRef windowTitle = QCFString::toCFStringRef(title);
-    [m_nsWindow setTitle: reinterpret_cast<const NSString *>(windowTitle)];
+    [m_nsWindow setTitle: const_cast<NSString *>(reinterpret_cast<const NSString *>(windowTitle))];
     CFRelease(windowTitle);
 }
 
@@ -325,7 +325,7 @@ QNSWindow * QCocoaWindow::createWindow()
 //  ### crashes
 //        [panel setFloatingPanel:needFloating];
 //        [panel setWorksWhenModal:worksWhenModal];
-        window = panel;
+        window = static_cast<NSWindow *>(panel);
         break;
     }
     default: