diff --git a/plugins/other/snmp__netapp_diskusage_ b/plugins/other/snmp__netapp_diskusage_
index 41ecf5ba..501a842d 100755
--- a/plugins/other/snmp__netapp_diskusage_
+++ b/plugins/other/snmp__netapp_diskusage_
@@ -55,8 +55,8 @@ of Network Appliance, Inc. in the U.S. and other countries.
 
 =head1 BUGS
 
-This plugin hasn't be tested on many hardware. If you encounter
-bugs, please report any to Guillaume Blairon E<lt>L<g@yom.be>E<gt>.
+This plugin wasn't tested on many hardware. If you encounter bugs,
+please report them to Guillaume Blairon E<lt>L<g@yom.be>E<gt>.
 
 =head1 LICENSE
 
@@ -113,7 +113,7 @@ my $session = Munin::Plugin::SNMP->session();
 my ($host, undef, undef, $tail) = Munin::Plugin::SNMP->config_session();
 my ($df_id, $name_oid);
 
-if ($tail =~ /^netapp_diskusage_(\d)*$/) {
+if ($tail =~ /^netapp_diskusage_(\d+)$/) {
     $df_id    = $1;
     $name_oid = '1.3.6.1.4.1.789.1.5.4.1.2.' . $df_id;
 } else {