1 files changed, 2 insertions, 3 deletions
diff --git a/lib/Net/IMAP/Sync.pm b/lib/Net/IMAP/Sync.pm
index 26303a6..3216483 100644
--- a/lib/Net/IMAP/Sync.pm
+++ b/lib/Net/IMAP/Sync.pm
@@ -657,12 +657,12 @@ sub append($$@) {
     my @uids;
     foreach (split /,/, $uidset) {
         if (/\A([0-9]+)\z/) {
-            $UIDNEXT = $1 + 1 if $UIDNEXT <= $1;
+            $UIDNEXT = $1 + 1 if defined $UIDNEXT and $UIDNEXT <= $1;
             push @uids, $1;
         } elsif (/\A([0-9]+):([0-9]+)\z/) {
             my ($min, $max) = $1 <= $2 ? ($1,$2) : ($2,$1);
             push @uids, ($min .. $max);
-            $UIDNEXT = $max + 1 if $UIDNEXT <= $max;
+            $UIDNEXT = $max + 1 if defined $UIDNEXT and $UIDNEXT <= $max;
         } else {
             $self->panic($_);
         }
@@ -736,7 +736,6 @@ sub slurp($) {
         # select(2) to block/timeout due to the raw socket not being
         # ready.
         unless (ref $stdout eq 'IO::Socket::SSL' and $stdout->pending() > 0) {
-            my $sel = IO::Select::->new($stdout);
             my ($ok) = $self->{_SEL_OUT}->can_read(0);
             return $read unless defined $ok;
         }