1 files changed, 3 insertions, 1 deletions

diff --git a/probe-mirmon b/probe-mirmon
index b0c3413..ff73776 100755
--- a/probe-mirmon
+++ b/probe-mirmon
@@ -112,6 +112,8 @@ sub munge_date {
 	if($timestamp >= $year2020 && $timestamp <= $year2038) {
 		return $timestamp;
 	} else {
-		return Date::Parse::str2time($timestr);
+		my $timestamp = Date::Parse::str2time($timestr);
+		return $timestamp if defined($timestamp);
 	}
+	return -1;
 }