diff --git a/collects/readline/doc.txt b/collects/readline/doc.txt
index ebfd1b23e9..5720d10552 100644
--- a/collects/readline/doc.txt
+++ b/collects/readline/doc.txt
@@ -14,7 +14,7 @@ interact with it.
 You can put the following in your ~/.mzschemerc so that MzScheme
 starts with readline support on xterms:
 
-  (when (equal? "xterm" (getenv "TERM"))
+  (when (regexp-match? #rx"xterm" (getenv "TERM"))
     (dynamic-require '(lib "rep.ss" "readline") #f))
 
 or start MzScheme with