diff --git a/binary-types.lisp b/binary-types.lisp
index b5bf6f4..8ae1c2f 100644
--- a/binary-types.lisp
+++ b/binary-types.lisp
@@ -14,7 +14,7 @@
 ;;;;------------------------------------------------------------------
 
 (defpackage #:binary-types
-  (:nicknames #:bt)
+  (:nicknames #:btypes)
   (:use #:common-lisp)
   (:export #:*endian*			; [dynamic-var] must be bound when reading integers
 	   #:endianess			; [deftype] The set of endian names