diff --git a/public/tier0/threadtools.h b/public/tier0/threadtools.h
index 95a5769f..4e64c550 100644
--- a/public/tier0/threadtools.h
+++ b/public/tier0/threadtools.h
@@ -784,7 +784,7 @@ private:
 	MUTEX_TYPE &m_lock;
 
 	// Disallow copying
-	CAutoLockT<MUTEX_TYPE>( const CAutoLockT<MUTEX_TYPE> & );
+	CAutoLockT( const CAutoLockT<MUTEX_TYPE> & );
 	CAutoLockT<MUTEX_TYPE> &operator=( const CAutoLockT<MUTEX_TYPE> & );
 };