Index: openacs-4/packages/acs-admin/www/install/index.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-admin/www/install/index.tcl,v
diff -u -r1.8.2.8 -r1.8.2.9
--- openacs-4/packages/acs-admin/www/install/index.tcl	7 Oct 2015 17:07:06 -0000	1.8.2.8
+++ openacs-4/packages/acs-admin/www/install/index.tcl	15 May 2016 12:12:02 -0000	1.8.2.9
@@ -7,7 +7,8 @@
 set page_title "Install OpenACS Packages"
 set context [list $page_title]
 
-set local_install_url "[ad_conn package_url]/apm/packages-install"
+set local_install_url [export_vars -base [ad_conn package_url]/apm/packages-install { {operation install} }]
+set local_upgrade_url [export_vars -base [ad_conn package_url]/apm/packages-install { {operation upgrade} }]
 set local_path $::acs::rootdir/packages
 
 set remote_install_url [export_vars -base "install/install" { repository_url channel current_channel head_channel }]