diff --git a/lib/TgMagicPdf/Telegram.pm b/lib/TgMagicPdf/Telegram.pm
index 75e419d..436214f 100644
--- a/lib/TgMagicPdf/Telegram.pm
+++ b/lib/TgMagicPdf/Telegram.pm
@@ -48,6 +48,7 @@ sub _dispatch_updates ($self) {
             }
             $in_process = 1;
             if ( $self->_used_cores >= $self->_cores ) {
+                $in_process = 0;
                 return;
             }
             for ( my $i = $self->_used_cores ; $i <= $self->_cores ; $i++ ) {