diff --git a/mailboxes/folders-lib.pl b/mailboxes/folders-lib.pl
index cdba7e374..55c04a0f6 100755
--- a/mailboxes/folders-lib.pl
+++ b/mailboxes/folders-lib.pl
@@ -2453,6 +2453,7 @@ foreach $f (@files) {
 		 $f eq "maildirfolder" || $f eq "maildirsize" ||
 		 $f eq "maildircache" || $f eq ".subscriptions" ||
                  $f eq ".usermin-maildircache" || $f =~ /^dovecot\.index/ ||
+		 $f =~ /^dovecot-uidvalidity.*$/ || $f eq "subscriptions" ||
 		 $f =~ /\.webmintmp(\.\d+)$/ || $f eq "dovecot-keywords");
 	local $p = "$_[0]/$f";
 	local $added = 0;