diff --git a/build.jam b/build.jam
index 8321dab..70c60f2 100644
--- a/build.jam
+++ b/build.jam
@@ -7,14 +7,14 @@ import project ;
 
 project /boost/function
     : common-requirements
-        <source>/boost/assert//boost_assert
-        <source>/boost/bind//boost_bind
-        <source>/boost/config//boost_config
-        <source>/boost/core//boost_core
-        <source>/boost/preprocessor//boost_preprocessor
-        <source>/boost/throw_exception//boost_throw_exception
-        <source>/boost/type_traits//boost_type_traits
-        <source>/boost/typeof//boost_typeof
+        <library>/boost/assert//boost_assert
+        <library>/boost/bind//boost_bind
+        <library>/boost/config//boost_config
+        <library>/boost/core//boost_core
+        <library>/boost/preprocessor//boost_preprocessor
+        <library>/boost/throw_exception//boost_throw_exception
+        <library>/boost/type_traits//boost_type_traits
+        <library>/boost/typeof//boost_typeof
         <include>include
     ;