--- a/scripts/plot/title.m
+++ b/scripts/plot/title.m
@@ -19,6 +19,7 @@
 
 ## -*- texinfo -*-
 ## @deftypefn {Function File} {} title (@var{title})
+## @deftypefnx {Function File} {} title (@var{title}, @var{p1}, @var{v1}, @dots{})
 ## Create a title object and return a handle to it.
 ## @end deftypefn
 
@@ -26,13 +27,14 @@
 
 ## Author: jwe
 
-function h = title (varargin)
+function h = title (s, varargin)
 
   if (rem (nargin, 2) == 1)
+    varargin = [{"horizontalalignment", "center"}, varargin]
     if (nargout > 0)
-      h = __axis_label__ ("title", varargin{:});
+      h = __axis_label__ ("title", s, varargin{:});
     else
-      __axis_label__ ("title", varargin{:});
+      __axis_label__ ("title", s, varargin{:});
     endif
   else
     print_usage ();