diff --git a/build.jam b/build.jam
index 65ba4d1..82a66b6 100644
--- a/build.jam
+++ b/build.jam
@@ -8,8 +8,8 @@ import project ;
 project /boost/logic
     : common-requirements
         <include>include
-        <source>/boost/config//boost_config
-        <source>/boost/core//boost_core
+        <library>/boost/config//boost_config
+        <library>/boost/core//boost_core
     ;
 
 explicit