diff --git a/README b/README
index acb95817..b472aab8 100644
--- a/README
+++ b/README
@@ -36,7 +36,7 @@ Requirements:
  * IRIX
  * DEC/Compaq Tru64 UNIX
  * HP-UX 10.20 and 11
- * MacOS X
+ * OS X
 
 
 Notes for packagers: