diff --git a/headers/os/app/Looper.h b/headers/os/app/Looper.h
index dc17141fd9..76016bc4f5 100644
--- a/headers/os/app/Looper.h
+++ b/headers/os/app/Looper.h
@@ -109,7 +109,7 @@ private:
 	friend class BMessenger;
 	friend class BView;
 	friend class BHandler;
-	friend class BPrivate::BLooperList;
+	friend class ::BPrivate::BLooperList;
 	friend port_id _get_looper_port_(const BLooper* );
 
 	virtual	void			_ReservedLooper1();
@@ -153,7 +153,7 @@ private:
 			BHandler*		resolve_specifier(BHandler* target, BMessage* msg);
 			void			UnlockFully();
 
-			BPrivate::BDirectMessageTarget* fDirectTarget;
+			::BPrivate::BDirectMessageTarget* fDirectTarget;
 			BMessage*		fLastMessage;
 			port_id			fMsgPort;
 			int32			fAtomicCount;
diff --git a/headers/private/shared/AutoDeleter.h b/headers/private/shared/AutoDeleter.h
index aa2f041431..a508fefd9b 100644
--- a/headers/private/shared/AutoDeleter.h
+++ b/headers/private/shared/AutoDeleter.h
@@ -269,12 +269,12 @@ private:
 }	// namespace BPrivate
 
 
-using BPrivate::ObjectDeleter;
-using BPrivate::ArrayDeleter;
-using BPrivate::MemoryDeleter;
-using BPrivate::CObjectDeleter;
-using BPrivate::MethodDeleter;
-using BPrivate::FileDescriptorCloser;
+using ::BPrivate::ObjectDeleter;
+using ::BPrivate::ArrayDeleter;
+using ::BPrivate::MemoryDeleter;
+using ::BPrivate::CObjectDeleter;
+using ::BPrivate::MethodDeleter;
+using ::BPrivate::FileDescriptorCloser;
 
 
 #endif	// _AUTO_DELETER_H
diff --git a/headers/private/shared/AutoLocker.h b/headers/private/shared/AutoLocker.h
index 9baa7aa7a5..fdcc49944b 100644
--- a/headers/private/shared/AutoLocker.h
+++ b/headers/private/shared/AutoLocker.h
@@ -171,8 +171,8 @@ protected:
 
 }	// namespace BPrivate
 
-using BPrivate::AutoLocker;
-using BPrivate::AutoLockerReadLocking;
-using BPrivate::AutoLockerWriteLocking;
+using ::BPrivate::AutoLocker;
+using ::BPrivate::AutoLockerReadLocking;
+using ::BPrivate::AutoLockerWriteLocking;
 
 #endif	// _AUTO_LOCKER_H