diff --git a/test/string.cpp b/test/string.cpp
index 6de05a8..36f103b 100755
--- a/test/string.cpp
+++ b/test/string.cpp
@@ -8,7 +8,7 @@
 // For more information, see http://www.boost.org/libs/range/
 //
 
-#define _MSL_USING_NAMESPACE 1
+//#define _MSL_USING_NAMESPACE 1
 
 #include <boost/detail/workaround.hpp>