diff --git a/build.jam b/build.jam
index 40abf02..7da8ea9 100644
--- a/build.jam
+++ b/build.jam
@@ -5,23 +5,26 @@
 
 require-b2 5.2 ;
 
+constant boost_dependencies :
+    /boost/assert//boost_assert
+    /boost/config//boost_config
+    /boost/core//boost_core
+    /boost/iterator//boost_iterator
+    /boost/mp11//boost_mp11
+    /boost/mpl//boost_mpl
+    /boost/type_erasure//boost_type_erasure
+    /boost/type_traits//boost_type_traits ;
+
 project /boost/poly_collection
     : common-requirements
-        <library>/boost/assert//boost_assert
-        <library>/boost/config//boost_config
-        <library>/boost/core//boost_core
-        <library>/boost/iterator//boost_iterator
-        <library>/boost/mp11//boost_mp11
-        <library>/boost/mpl//boost_mpl
-        <library>/boost/type_erasure//boost_type_erasure
-        <library>/boost/type_traits//boost_type_traits
         <include>include
     ;
 
 explicit
-    [ alias boost_poly_collection ]
+    [ alias boost_poly_collection : : : : <library>$(boost_dependencies) ]
     [ alias all : boost_poly_collection example test ]
     ;
 
 call-if : boost-library poly_collection
     ;
+