diff --git a/general-info/release-20b.txt b/general-info/release-20b.txt
index e040685024a5552372b05f57a85f8139b24eced3..e475cc870bb307a62e7e733c5e3e23d1327855c9 100644
--- a/general-info/release-20b.txt
+++ b/general-info/release-20b.txt
@@ -148,7 +148,7 @@ New in this release:
       is abslute or relative.  Previously, the result was take from
       the SOURCE pathname, except if TO were absolute, in which case
       the result was absolute.
-    - Add MAC as an aliase to the CR composing external format.
+    - Add MAC as an alias to the CR composing external format.
 
   * Improvements to the PCL implementation of CLOS: