diff --git a/include/boost/core/empty_value.hpp b/include/boost/core/empty_value.hpp
index 9265f05..7139b3e 100644
--- a/include/boost/core/empty_value.hpp
+++ b/include/boost/core/empty_value.hpp
@@ -71,6 +71,10 @@ public:
     template<class U>
     empty_value(boost::empty_init_t, const U& value)
         : value_(value) { }
+
+    template<class U>
+    empty_value(boost::empty_init_t, U& value)
+        : value_(value) { }
 #endif
 
     const T& get() const BOOST_NOEXCEPT {
@@ -115,6 +119,10 @@ public:
     template<class U>
     empty_value(boost::empty_init_t, const U& value)
         : T(value) { }
+
+    template<class U>
+    empty_value(boost::empty_init_t, U& value)
+        : T(value) { }
 #endif
 
     const T& get() const BOOST_NOEXCEPT {
diff --git a/include/boost/core/noinit_adaptor.hpp b/include/boost/core/noinit_adaptor.hpp
index 26fa7c3..22c9aab 100644
--- a/include/boost/core/noinit_adaptor.hpp
+++ b/include/boost/core/noinit_adaptor.hpp
@@ -71,6 +71,11 @@ struct noinit_adaptor
     void construct(U* p, const V& v) {
         ::new((void*)p) U(v);
     }
+
+    template<class U, class V>
+    void construct(U* p, V& v) {
+        ::new((void*)p) U(v);
+    }
 #endif
 
     template<class U>