diff --git a/Check.pm b/Check.pm
index 2e73119..7f1fbdf 100644
--- a/Check.pm
+++ b/Check.pm
@@ -55,7 +55,7 @@ sub action
         # Age
         for ( my $i = 0 ; $i < @Backups ; $i++ ) {
             if ( $Backups[$i]{type} eq "full" or "incr" ) {
-                $lastAge = $Backups[-1]{startTime};
+                $lastAge = sprintf("%.1f", (time - $Backups[-1]{startTime}) / (24 * 3600));
             }
         }