diff --git a/check_ambari_cluster_total_hosts.pl b/check_ambari_cluster_total_hosts.pl
index ac968d810..f4afeb9a8 100755
--- a/check_ambari_cluster_total_hosts.pl
+++ b/check_ambari_cluster_total_hosts.pl
@@ -13,7 +13,7 @@
 
 Optional thresholds may be applied to this number.
 
-Tested on Ambari 2.1.0, 2.1.2 on Hortonworks HDP 2.2, 2.3";
+Tested on Ambari 2.1.0, 2.1.2, 2.2.1 on Hortonworks HDP 2.2, 2.3, 2.4";
 
 $VERSION = "0.1";