diff --git a/docs/upgrades/upgrade_7.7.12-7.7.13.pl b/docs/upgrades/upgrade_7.7.12-7.7.13.pl
index 1240485a7..87d1cd8f5 100644
--- a/docs/upgrades/upgrade_7.7.12-7.7.13.pl
+++ b/docs/upgrades/upgrade_7.7.12-7.7.13.pl
@@ -49,8 +49,11 @@ finish($session); # this line required
 # Describe what our function does
 sub addSessionTokenId {
     my $session = shift;
-    print "\tAdding CSRF token to session... " unless $quiet;
-    $session->db->write(q|ALTER TABLE userSession ADD COLUMN tokenId CHAR(22)|);
+    print "\tAdding CSRF token to userSession, if needed... " unless $quiet;
+    my $sth = $session->db->read('describe userSession tokenId');
+    if (! defined $sth->hashRef) {
+        $session->db->write(q|ALTER TABLE userSession ADD COLUMN tokenId CHAR(22)|);
+    }
     # and here's our code
     print "DONE!\n" unless $quiet;
 }