diff --git a/README b/README
index e752242..f465574 100644
--- a/README
+++ b/README
@@ -84,7 +84,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
 =  sha512sum       non-posix                       none
    wc              yes                             none
 =  xargs           no                              -I, -L, -p, -s, -t, -x
-=* yes             yes                             none
+=* yes             non-posix                       none
 
 The  complement of  sbase  is  ubase[1] which  is  Linux-specific  and
 provides all  the non-portable tools.   Together they are  intended to