diff --git a/doc/v2/scope.html b/doc/v2/scope.html
index 0dab0a70..20a29063 100644
--- a/doc/v2/scope.html
+++ b/doc/v2/scope.html
@@ -85,7 +85,7 @@ namespace boost { namespace python
 "../../../utility/utility.htm#Class noncopyable">noncopyable</a>
   {
    public:
-      scope(object const&amp;);
+      explicit scope(object const&amp;);
       scope();
       ~scope()
   };
@@ -95,7 +95,7 @@ namespace boost { namespace python
     <h4><a name="scope-spec-ctors"></a>Class <code>scope</code> constructors
     and destructor</h4>
 <pre>
-scope(object const&amp; x);
+explicit scope(object const&amp; x);
 </pre>
     Stores a reference to the current associated scope object, and sets the
     associated scope object to the one referred to by <code>x.ptr()</code>.
diff --git a/include/boost/python/scope.hpp b/include/boost/python/scope.hpp
index 7262f8da..086c7d87 100644
--- a/include/boost/python/scope.hpp
+++ b/include/boost/python/scope.hpp
@@ -16,7 +16,7 @@ class BOOST_PYTHON_DECL scope
     : public object, private noncopyable
 {
  public:
-    inline scope(object const&);
+    explicit inline scope(object const&);
     inline scope();
     inline ~scope();