diff --git a/src/build-system.jam b/src/build-system.jam
index e3d4943c1..1f36fbf67 100755
--- a/src/build-system.jam
+++ b/src/build-system.jam
@@ -250,7 +250,7 @@ if ! [ feature.values <toolset> ]
     ECHO "warning: Configuring default toolset" \"$(default-toolset)\". ;
     ECHO "warning: If the default is wrong, you may not be able to build C++ programs." ;
     ECHO "warning: Use the \"--toolset=xxxxx\" option to override our guess." ;
-    ECHO "warning: For more configuration options, please consult"
+    ECHO "warning: For more configuration options, please consult" ;
     ECHO "warning: http://boost.org/boost-build2/doc/html/bbv2/advanced/configuration.html" ;