diff --git a/Check.pm b/Check.pm
index a6307e3..801d023 100644
--- a/Check.pm
+++ b/Check.pm
@@ -15,6 +15,9 @@
 #
 #========================================================================
 
+# Get the last full backup ID :
+# cat /var/lib/BackupPC/pc/localhost/backups | grep "full" | tail -1 | cut -f1 -d$'\t'
+
 package BackupPC::CGI::Check;
 
 use strict;