diff --git a/apps/voip/3cx/restapi/custom/api.pm b/apps/voip/3cx/restapi/custom/api.pm
index 57cd5f66c..4e41dbb42 100644
--- a/apps/voip/3cx/restapi/custom/api.pm
+++ b/apps/voip/3cx/restapi/custom/api.pm
@@ -344,7 +344,7 @@ Set 3CX Password.
 Threshold for HTTP timeout (Default: '30').
 
 =item B<--unknown-http-status>
-Threshold warning for http response code.
+Threshold unknown for http response code.
 (Default: '%{http_code} < 200 or %{http_code} >= 300')
 
 =item B<--warning-http-status>