1 files changed, 1 insertions, 0 deletions
diff --git a/libbuild2/utility.hxx b/libbuild2/utility.hxx
index c82dcc2..a285b03 100644
--- a/libbuild2/utility.hxx
+++ b/libbuild2/utility.hxx
@@ -69,6 +69,7 @@ namespace build2
   using butl::alpha;
   using butl::alnum;
   using butl::digit;
+  using butl::wspace;
 
   using butl::trim;
   using butl::next_word;