diff --git a/flan-utils.lisp b/flan-utils.lisp
index a275290..f3feb28 100644
--- a/flan-utils.lisp
+++ b/flan-utils.lisp
@@ -587,7 +587,7 @@
        ,(cons 'cond exprs))))
 
 (defun split-string (string &optional sep)
-  "Split a string by this seperator (or `:whitespace', if not provided"
+  "Split a string by this seperator (or whitespace, if not provided)"
   (let* ((sep (or (switch sep
 			  (#\Newline "[\\n\\f\\r]")
 			  (#\Space " ")