diff --git a/utils.lisp b/utils.lisp
index 04cbaee..3525086 100644
--- a/utils.lisp
+++ b/utils.lisp
@@ -133,7 +133,12 @@
 	while line do (funcall fi line)))
 
 (defun strcat (&rest str)
-  (apply #'concatenate (cons 'string str)))
+  (apply #'concatenate (cons 'string (mapcar #'(lambda (x) 
+						 (typecase x
+						   (string x)
+						   (character (string x))
+						   (t (write-to-string x))))
+					     str))))
 
 (defmacro until (stmt)
   `(let ((ret nil))
@@ -424,6 +429,7 @@
       thing)))
 
 (defmacro enable-all-readers ()
+  "Turn on reader macros"
   '(eval-when (:compile-toplevel :load-toplevel :execute)
      (push *readtable* *old-readtables*)
      (setq *readtable* (copy-readtable))
@@ -434,6 +440,7 @@
      (set-macro-character #\~ 'top-level-reader)))	;"Run at compile,load and execute"
 
 (defmacro disable-all-readers()
+  "Turn off reader macros"
   '(eval-when (:compile-toplevel :load-toplevel :execute)
     (setq *readtable* (pop *old-readtables*))))