diff --git a/centreon/common/fortinet/fortigate/snmp/mode/cpu.pm b/centreon/common/fortinet/fortigate/snmp/mode/cpu.pm
index 6bb459f89..91185c599 100644
--- a/centreon/common/fortinet/fortigate/snmp/mode/cpu.pm
+++ b/centreon/common/fortinet/fortigate/snmp/mode/cpu.pm
@@ -90,7 +90,7 @@ sub new {
 
     $options{options}->add_options(arguments => {
         'cluster'     => { name => 'cluster' },
-        'filter-core' => { name => 'filter_core' },
+        'filter-core:s' => { name => 'filter_core' },
     });
 
     return $self;