diff --git a/centreon-plugins/network/cisco/common/mode/environment.pm b/centreon-plugins/network/cisco/common/mode/environment.pm
index 0fb57d760..cae3feb1e 100644
--- a/centreon-plugins/network/cisco/common/mode/environment.pm
+++ b/centreon-plugins/network/cisco/common/mode/environment.pm
@@ -79,7 +79,7 @@ sub new {
     $self->{version} = '1.0';
     $options{options}->add_options(arguments =>
                                 { 
-                                  "exclude"        => { name => 'exclude' },
+                                  "exclude:s"        => { name => 'exclude' },
                                 });
 
     return $self;
@@ -296,4 +296,4 @@ Exclude some parts (comma seperated list) (Example: --exclude=temperatures,psu).
 =back
 
 =cut
-    
\ No newline at end of file
+