diff --git a/CHANGES b/CHANGES
index b420393211214109274844722aab0f7c3ed4e46a..7a444266ff589b4c84f3fd533862ba57f6af5358 100644
--- a/CHANGES
+++ b/CHANGES
@@ -234,7 +234,7 @@
 
   *) Added support for OCB mode. OpenSSL has been granted a patent license
      compatible with the OpenSSL license for use of OCB. Details are available
-     at https://www.openssl.org/docs/misc/OCB-patent-grant-OpenSSL.pdf. Support
+     at https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf. Support
      for OCB can be removed by calling config with no-ocb.
      [Matt Caswell]