diff --git a/build.jam b/build.jam
index 5f276a3..55569f9 100644
--- a/build.jam
+++ b/build.jam
@@ -7,10 +7,10 @@ import project ;
 
 project /boost/concept_check
     : common-requirements
-        <source>/boost/config//boost_config
-        <source>/boost/preprocessor//boost_preprocessor
-        <source>/boost/static_assert//boost_static_assert
-        <source>/boost/type_traits//boost_type_traits
+        <library>/boost/config//boost_config
+        <library>/boost/preprocessor//boost_preprocessor
+        <library>/boost/static_assert//boost_static_assert
+        <library>/boost/type_traits//boost_type_traits
         <include>include
     ;