diff --git a/src/build-system.jam b/src/build-system.jam
index 96ffbd5e1..c0747ff4b 100755
--- a/src/build-system.jam
+++ b/src/build-system.jam
@@ -153,7 +153,8 @@ if ! [ feature.values <toolset> ]
 {
     ECHO "warning: no toolsets are configured." ;
     ECHO "warning: you won't be able to build C++ programs." ;
-    ECHO "warning: please consult the documentation." ;
+    ECHO "warning: please consult the documentation at" ;
+    ECHO "warning: http://boost.org/boost-build2/doc/html/bbv2/advanced/configuration.html" ;
     ECHO ;
 }