diff --git a/centreon/plugins/options.pm b/centreon/plugins/options.pm
index 6cae0cc3b..557e2f412 100644
--- a/centreon/plugins/options.pm
+++ b/centreon/plugins/options.pm
@@ -61,7 +61,7 @@ sub set_sanity {
         $centreon::plugins::alternative::Getopt::warn_message = 1;
     }
 
-    $self->{sanity} == 1;
+    $self->{sanity} = 1;
 }
 
 sub set_output {