diff --git a/src/check_centreon_snmp_traffic b/src/check_centreon_snmp_traffic
index 516ecd7c7..21e04bd79 100644
--- a/src/check_centreon_snmp_traffic
+++ b/src/check_centreon_snmp_traffic
@@ -168,8 +168,8 @@ if ($critical <= $warning){
     print_usage();
     exit $ERRORS{'OK'};
 }
-if ($opt_64bits && $snmp !~ /2/) {
-        print "Error : Usage : SNMP v2 is required with option --64-bits\n";
+if ($opt_64bits && ($snmp !~ /2/ || $snmp !~ /3/) {
+        print "Error : Usage : SNMP v2/v3 is required with option --64-bits\n";
         exit $ERRORS{'UNKNOWN'};
 }
 if (defined ($opt_64bits)) {