Index: /branches/release-38/tools/upgrade
===================================================================
--- /branches/release-38/tools/upgrade (revision 1950)
+++ /branches/release-38/tools/upgrade (revision 2324)
@@ -75,4 +75,7 @@
     }
 
+    if ( $install ) {
+        $MT::Upgrade::Installing = 1;
+    }
     my $updated = MT::Upgrade->do_upgrade(
         App       => __PACKAGE__,