diff --git a/storage/synology/mode/hardware.pm b/storage/synology/mode/hardware.pm
index 164ec443c..74b9018cc 100644
--- a/storage/synology/mode/hardware.pm
+++ b/storage/synology/mode/hardware.pm
@@ -93,8 +93,8 @@ sub new {
                                   "exclude:s"               => { name => 'exclude' },
                                   "component:s"             => { name => 'component', default => 'all' },
                                   "no-component:s"          => { name => 'no_component' },
-        			  "threshold-overload:s@"   => { name => 'threshold_overload' },
-	                        });
+                                  "threshold-overload:s@"   => { name => 'threshold_overload' },
+                                });
 
     $self->{components} = {};
     $self->{no_components} = undef;
@@ -137,7 +137,7 @@ sub run {
 
 
     $self->{results} = $self->{snmp}->get_leef(oids => [$oid_synoSystempowerStatus, $oid_synoSystemcpuFanStatus, $oid_synoSystemsystemFanStatus],
-						nothing_quit => 1);	
+                        nothing_quit => 1);    
 
     if ($self->{option_results}->{component} eq 'all') {
         $self->check_fan_cpu();
@@ -291,8 +291,8 @@ sub check_disk {
 
     foreach my $key ($self->{snmp}->oid_lex_sort(keys %$results)) {              
         next if ($key !~ /^$oid_synoDiskdiskStatus\.(\d+)/);
-	my $index = $1;
-	$instance = $1;                                                            
+        my $index = $1;
+        $instance = $1;                                                            
         my $disk_state = $results->{$oid_synoDiskdiskStatus . '.' . $index}; 
 
         next if ($self->check_exclude(section => 'disk', instance => $instance));
@@ -302,14 +302,13 @@ sub check_disk {
         $self->{output}->output_add(long_msg => sprintf("Disk '%s' state is %s.",
                                     $index, $map_states_disk{$disk_state}));
         my $exit = $self->get_severity(section => 'disk', value => $map_states_disk{$disk_state});
-	if (!$self->{output}->is_status(value => $exit, compare => 'ok', litteral => 1)) {
+        if (!$self->{output}->is_status(value => $exit, compare => 'ok', litteral => 1)) {
             $self->{output}->output_add(severity => $exit,
                                         short_msg => sprintf("Disk '%s' state is %s.", $index, $map_states_disk{$disk_state}));
         }
     }
 }
 
-
 1;
 
 __END__
diff --git a/storage/synology/mode/systemstatus.pm b/storage/synology/mode/systemstatus.pm
index 3a8e0b267..db922ef78 100644
--- a/storage/synology/mode/systemstatus.pm
+++ b/storage/synology/mode/systemstatus.pm
@@ -52,7 +52,6 @@ my %map_states_system = (
     2 => 'Failed',
 );
 
-
 sub new {
     my ($class, %options) = @_;
     my $self = $class->SUPER::new(package => __PACKAGE__, %options);
@@ -73,7 +72,7 @@ sub run {
     # $options{snmp} = snmp object
     $self->{snmp} = $options{snmp};
 
-    my $oid_synoSystemsystemStatus = '.1.3.6.1.4.1.6574.1.1.0'; # in Celsius
+    my $oid_synoSystemsystemStatus = '.1.3.6.1.4.1.6574.1.1.0';
 
     my $result = $self->{snmp}->get_leef(oids => [$oid_synoSystemsystemStatus],
                                          nothing_quit => 1);
diff --git a/storage/synology/mode/temperature.pm b/storage/synology/mode/temperature.pm
index ae645e752..8529dbb76 100644
--- a/storage/synology/mode/temperature.pm
+++ b/storage/synology/mode/temperature.pm
@@ -39,7 +39,6 @@ use base qw(centreon::plugins::mode);
 
 use strict;
 use warnings;
-use Data::Dumper;
 
 sub new {
     my ($class, %options) = @_;
diff --git a/storage/synology/mode/ups.pm b/storage/synology/mode/ups.pm
index f85f424c0..7bccb23e0 100644
--- a/storage/synology/mode/ups.pm
+++ b/storage/synology/mode/ups.pm
@@ -39,7 +39,6 @@ use base qw(centreon::plugins::mode);
 
 use strict;
 use warnings;
-use Data::Dumper;
 
 sub new {
     my ($class, %options) = @_;
@@ -49,8 +48,8 @@ sub new {
     $self->{version} = '1.0';
     $options{options}->add_options(arguments =>
                                 {
-                                  "warning:s"               => { name => 'warning' },
-                                  "critical:s"              => { name => 'critical' },
+                                  "warning:s"       => { name => 'warning' },
+                                  "critical:s"      => { name => 'critical' },
                                 });
     return $self;
 }