diff --git a/script/partitioning.pl b/script/partitioning.pl
index be14d46..a526b9f 100755
--- a/script/partitioning.pl
+++ b/script/partitioning.pl
@@ -107,7 +107,7 @@ sub aggiorna {
 
 			next if ($1 eq '19700101');
 			my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) = localtime($2);
-			$ultimo = $year+1900."-".$mon+1."-".$mday;
+			$ultimo = ($year+1900)."-".i($mon+1)."-".$mday;
 			my $diff = diffgg ($ultimo);
 
 			if ($diff > 365) {