diff --git a/check_size_consistency.pl b/check_size_consistency.pl
index b7abee0..210cf4d 100644
--- a/check_size_consistency.pl
+++ b/check_size_consistency.pl
@@ -30,7 +30,7 @@ for ( my $i = 0 ; $i < @backups ; $i++ ) {
       $fullCnt++;
       if ( $fullAge < 0 || $backups[$i]{startTime} > $fullAge ) {
           $fullAge  = $backups[$i]{startTime};
-          $fullSize = $backups[$i]{size};
+          $fullSize0 = $backups[$i]{size};
           $fullDur  = $backups[$i]{endTime} - $backups[$i]{startTime};
       }
   }
@@ -59,7 +59,7 @@ $maxErrors = $conf->{MaxXferError} if (defined $conf->{MaxXferError});
 
 print<<"EOF";
 
-Full Size of last backup : $fullSize
+Full Size of last backup : $fullSize0
 EOF
 
 exit(0);