diff --git a/src/build/project.jam b/src/build/project.jam
index e072ca387..9f475cb10 100644
--- a/src/build/project.jam
+++ b/src/build/project.jam
@@ -263,7 +263,7 @@ rule find-jamfile (
     {
         errors.error Unable to load Jamfile.
             : Could not find a Jamfile in directory '$(dir)'.
-            : Attempted to find it with pattern '"$(JAMFILE:J=" ")"'.
+            : Attempted to find it with pattern '"$(JAMFILE:J= )"'.
             : Please consult the documentation at 'http://www.boost.org'. ;
     }