diff --git a/include/boost/atomic/atomic.hpp b/include/boost/atomic/atomic.hpp
index 18402a3..dd3c014 100644
--- a/include/boost/atomic/atomic.hpp
+++ b/include/boost/atomic/atomic.hpp
@@ -139,7 +139,6 @@ public:
     }
 
     BOOST_DELETED_FUNCTION(atomic(atomic const&))
-    BOOST_DELETED_FUNCTION(atomic& operator=(atomic const&))
     BOOST_DELETED_FUNCTION(atomic& operator=(atomic const&) volatile)
 };