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-rw-r--r--lib/Travel/Status/DE/DBWagenreihung.pm2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Travel/Status/DE/DBWagenreihung.pm b/lib/Travel/Status/DE/DBWagenreihung.pm
index 8b0d6cc..962211a 100644
--- a/lib/Travel/Status/DE/DBWagenreihung.pm
+++ b/lib/Travel/Status/DE/DBWagenreihung.pm
@@ -207,7 +207,7 @@ sub train_subtype {
if ( $ml{ $likelihood[0] } <= 2 ) {
# inconclusive
- return '???';
+ return undef;
}
return $likelihood[0];