diff --git a/samples/real_positions/real_position_token.hpp b/samples/real_positions/real_position_token.hpp
index a387a0df0..6c3ac8647 100644
--- a/samples/real_positions/real_position_token.hpp
+++ b/samples/real_positions/real_position_token.hpp
@@ -17,7 +17,7 @@
 #include <boost/wave/util/file_position.hpp>
 #include <boost/wave/token_ids.hpp>  
 #include <boost/wave/language_support.hpp>
-#include <boost/detail/atomic_count.hpp>
+#include <boost/smart_ptr/detail/atomic_count.hpp>
 #include <boost/optional.hpp>
 
 ///////////////////////////////////////////////////////////////////////////////