diff --git a/lib/Travelynx/Helper/HAFAS.pm b/lib/Travelynx/Helper/HAFAS.pm
index 6cbaf11..e0f4706 100644
--- a/lib/Travelynx/Helper/HAFAS.pm
+++ b/lib/Travelynx/Helper/HAFAS.pm
@@ -86,9 +86,10 @@ sub get_departures_p {
 	my ( $self, %opt ) = @_;
 
 	my $when
-	  = ( $opt{timestamp}->clone
-		  // DateTime->now( time_zone => 'Europe/Berlin' ) )
-	  ->subtract( minutes => $opt{lookbehind} );
+	  = $opt{timestamp}
+	  ? $opt{timestamp}->clone
+	  : DateTime->now( time_zone => 'Europe/Berlin' );
+	->subtract( minutes => $opt{lookbehind} );
 	return Travel::Status::DE::HAFAS->new_p(
 		station    => $opt{eva},
 		datetime   => $when,