diff --git a/ChangeLog b/ChangeLog
index 19bb03ba..3a56fbfd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2023-10-30  Mats Lidell  <matsl@gnu.org>
+
+* hversion.el (hyperb:mouse-buttons):
+  hpath.el (hpath:get-external-display-alist): Add mac as possible
+    window-system on Mac OS.
+
 2023-10-25  Mats Lidell  <matsl@gnu.org>
 
 * test/hui-tests.el (hui--ibut-link-directly-to-file)
diff --git a/hpath.el b/hpath.el
index 508a8726..4abd1eac 100644
--- a/hpath.el
+++ b/hpath.el
@@ -3,7 +3,7 @@
 ;; Author:       Bob Weiner
 ;;
 ;; Orig-Date:     1-Nov-91 at 00:44:23
-;; Last-Mod:      3-Oct-23 at 17:39:29 by Mats Lidell
+;; Last-Mod:     30-Oct-23 at 23:32:24 by Mats Lidell
 ;;
 ;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;
@@ -1660,7 +1660,7 @@ programs, such as a pdf reader.  The cdr of each element may be:
   or a function of one filename argument.
 See also `hpath:internal-display-alist' for internal,
 `window-system' independent display settings."
-  (cond ((memq window-system '(dps ns))
+  (cond ((memq window-system '(mac dps ns))
 	 hpath:external-display-alist-macos)
 	(hyperb:microsoft-os-p
 	 hpath:external-display-alist-mswindows)
diff --git a/hversion.el b/hversion.el
index f7a9ea67..8ecbafeb 100644
--- a/hversion.el
+++ b/hversion.el
@@ -4,7 +4,7 @@
 ;; Maintainer:   Bob Weiner, Mats Lidell
 ;;
 ;; Orig-Date:     1-Jan-94
-;; Last-Mod:      3-Oct-23 at 23:31:30 by Mats Lidell
+;; Last-Mod:     30-Oct-23 at 23:49:10 by Mats Lidell
 ;;
 ;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;
@@ -39,7 +39,7 @@
 
 (defvar hyperb:mouse-buttons
   (if (or (and hyperb:microsoft-os-p (not (memq window-system '(w32 w64 x))))
-	  (memq window-system '(ns dps)))
+	  (memq window-system '(mac ns dps)))
       2 3)
   "Number of live buttons available on the mouse.
 Override this if the system-computed default is incorrect for