Index: openacs-4/packages/acs-admin/www/install/install.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-admin/www/install/install.tcl,v
diff -u -r1.13.2.4 -r1.13.2.5
--- openacs-4/packages/acs-admin/www/install/install.tcl	8 Mar 2023 17:03:48 -0000	1.13.2.4
+++ openacs-4/packages/acs-admin/www/install/install.tcl	6 Oct 2023 12:09:19 -0000	1.13.2.5
@@ -2,7 +2,7 @@
     Install from local filesystem
 } {
     {package_type:token ""}
-    {upgrade_p:boolean 0}
+    {upgrade_p:boolean,notnull 0}
     {repository_url "https://openacs.org/repository/"}
     {channel:token ""}
     {maturity:naturalnum ""}