diff --git a/include/boost/mpl/sizeof.hpp b/core/include/boost/mpl/sizeof.hpp
similarity index 100%
rename from include/boost/mpl/sizeof.hpp
rename to core/include/boost/mpl/sizeof.hpp
diff --git a/core/test/Jamfile.v2 b/core/test/Jamfile.v2
index 19410a4..9f16f2d 100644
--- a/core/test/Jamfile.v2
+++ b/core/test/Jamfile.v2
@@ -31,3 +31,4 @@ compile no_has_xxx.cpp ;
 compile numeric_ops.cpp ;
 run print.cpp ;
 run size_t.cpp ;
+compile sizeof.cpp ;
diff --git a/test/sizeof.cpp b/core/test/sizeof.cpp
similarity index 100%
rename from test/sizeof.cpp
rename to core/test/sizeof.cpp
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 57ed04b..4bd0e5a 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -75,7 +75,6 @@ compile set.cpp ;
 compile set_c.cpp ;
 compile single_view.cpp ;
 compile size.cpp ;
-compile sizeof.cpp ;
 compile sort.cpp ;
 compile stable_partition.cpp ;
 compile transform.cpp ;