diff --git a/src/corelib/kernel/qcore_mac.mm b/src/corelib/kernel/qcore_mac.mm
index 12bf81f0929..5100a07a2a1 100644
--- a/src/corelib/kernel/qcore_mac.mm
+++ b/src/corelib/kernel/qcore_mac.mm
@@ -505,7 +505,7 @@ bool qt_apple_isSandboxed()
 }
 
 QT_END_NAMESPACE
-@implementation NSObject (QtSandboxHelpers)
+@implementation NSObject (QtExtras)
 - (id)qt_valueForPrivateKey:(NSString *)key
 {
     if (qt_apple_isSandboxed())
diff --git a/src/corelib/kernel/qcore_mac_p.h b/src/corelib/kernel/qcore_mac_p.h
index 1b0283e77bd..b71ff1a28f6 100644
--- a/src/corelib/kernel/qcore_mac_p.h
+++ b/src/corelib/kernel/qcore_mac_p.h
@@ -204,7 +204,7 @@ Q_CORE_EXPORT bool qt_apple_isSandboxed();
 
 #if defined(__OBJC__)
 QT_END_NAMESPACE
-@interface NSObject (QtSandboxHelpers)
+@interface NSObject (QtExtras)
 - (id)qt_valueForPrivateKey:(NSString *)key;
 @end
 QT_BEGIN_NAMESPACE