diff --git a/conf/main_ipv4.conf.sample b/conf/main_ipv4.conf.sample
index f15230a..986225c 100644
--- a/conf/main_ipv4.conf.sample
+++ b/conf/main_ipv4.conf.sample
@@ -931,7 +931,7 @@ bigbluebutton_udp_ports="$standard_bigbluebutton_udp_port_range"
 # -    UDP 3478,3479,3480,3481   -->   13.107.64.0/18, 52.112.0.0/14, 52.120.0.0/14
 # -
 ms_skype_teams_tcp_ports="$standard_ms_skype_teams_tcp_ports"
-ms_skype_teams_udp4_ports="$standard_ms_skype_teams_udp6_ports"
+ms_skype_teams_udp4_ports="$standard_ms_skype_teams_udp4_ports"
 ms_skype_teams_udp4_hosts="$standard_ms_skype_teams_udp4_hosts"