diff --git a/include/boost/move/core.hpp b/include/boost/move/core.hpp
index 37bca0d..c32c194 100644
--- a/include/boost/move/core.hpp
+++ b/include/boost/move/core.hpp
@@ -260,7 +260,7 @@
 
    #define BOOST_COPYABLE_AND_MOVABLE(TYPE)\
       public:\
-      TYPE& operator=(TYPE &t)\
+      BOOST_MOVE_FORCEINLINE TYPE& operator=(TYPE &t)\
       {  this->operator=(*BOOST_MOVE_TO_RV_CAST(const ::boost::rv<TYPE>*, &t)); return *this;}\
       public:\
       BOOST_MOVE_FORCEINLINE operator ::boost::rv<TYPE>&() \