diff --git a/centreon-plugins/snmp_standard/mode/memory.pm b/centreon-plugins/snmp_standard/mode/memory.pm
index 3a8207402..28c7e2ead 100644
--- a/centreon-plugins/snmp_standard/mode/memory.pm
+++ b/centreon-plugins/snmp_standard/mode/memory.pm
@@ -199,7 +199,7 @@ Threshold warning in percent.
 
 Threshold critical in percent.
 
-=item B<-swap>
+=item B<--swap>
 
 Check swap also.