diff --git a/test/smart_ptr_test.cpp b/test/smart_ptr_test.cpp
index 656a42a..12120ed 100644
--- a/test/smart_ptr_test.cpp
+++ b/test/smart_ptr_test.cpp
@@ -14,6 +14,8 @@
 //  20 Jul 99  header name changed to .hpp
 //  20 Apr 99  additional error tests added.
 
+#define _CRT_SECURE_NO_WARNINGS
+
 #include <boost/config.hpp>
 
 #if defined(BOOST_MSVC)