diff --git a/mem_fn_derived_test.cpp b/mem_fn_derived_test.cpp
index 759197a..c689ac2 100644
--- a/mem_fn_derived_test.cpp
+++ b/mem_fn_derived_test.cpp
@@ -17,7 +17,7 @@
 //
 
 #include <boost/mem_fn.hpp>
-#include <boost/smart_ptr.hpp>
+#include <boost/shared_ptr.hpp>
 
 #if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
 #pragma warning(push, 3)
diff --git a/mem_fn_stdcall_test.cpp b/mem_fn_stdcall_test.cpp
index 0f0ab45..a1f5357 100644
--- a/mem_fn_stdcall_test.cpp
+++ b/mem_fn_stdcall_test.cpp
@@ -19,7 +19,7 @@
 #define BOOST_MEM_FN_ENABLE_STDCALL
 
 #include <boost/mem_fn.hpp>
-#include <boost/smart_ptr.hpp>
+#include <boost/shared_ptr.hpp>
 
 #if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
 #pragma warning(push, 3)
diff --git a/mem_fn_test.cpp b/mem_fn_test.cpp
index 7706e22..63756f2 100644
--- a/mem_fn_test.cpp
+++ b/mem_fn_test.cpp
@@ -17,7 +17,7 @@
 //
 
 #include <boost/mem_fn.hpp>
-#include <boost/smart_ptr.hpp>
+#include <boost/shared_ptr.hpp>
 
 #if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
 #pragma warning(push, 3)
diff --git a/mem_fn_void_test.cpp b/mem_fn_void_test.cpp
index 4b669e4..ad9c5df 100644
--- a/mem_fn_void_test.cpp
+++ b/mem_fn_void_test.cpp
@@ -17,7 +17,7 @@
 //
 
 #include <boost/mem_fn.hpp>
-#include <boost/smart_ptr.hpp>
+#include <boost/shared_ptr.hpp>
 
 #if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
 #pragma warning(push, 3)