diff --git a/build.jam b/build.jam
index f59e4f4..377da25 100644
--- a/build.jam
+++ b/build.jam
@@ -7,8 +7,8 @@ import project ;
 
 project /boost/bind
     : common-requirements
-        <source>/boost/config//boost_config
-        <source>/boost/core//boost_core
+        <library>/boost/config//boost_config
+        <library>/boost/core//boost_core
         <include>include
     ;