diff --git a/src/completion/list_ddclient_protocols.sh b/src/completion/list_ddclient_protocols.sh
index 75fb0cf44..3b4eff4d6 100755
--- a/src/completion/list_ddclient_protocols.sh
+++ b/src/completion/list_ddclient_protocols.sh
@@ -1,17 +1,17 @@
 #!/bin/sh
 #
 # Copyright (C) 2023 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
 # published by the Free Software Foundation.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-echo -n $(ddclient -list-protocols)
+echo -n $(ddclient -list-protocols | grep  -vE 'nsupdate|cloudns')
diff --git a/src/validators/ddclient-protocol b/src/validators/ddclient-protocol
index 6f927927b..bc6826120 100755
--- a/src/validators/ddclient-protocol
+++ b/src/validators/ddclient-protocol
@@ -1,24 +1,24 @@
 #!/bin/sh
 #
 # Copyright (C) 2023 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
 # published by the Free Software Foundation.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-ddclient -list-protocols | grep -qw $1
+ddclient -list-protocols | grep -vE 'nsupdate|cloudns' | grep -qw $1
 
 if [ $? -gt 0 ]; then
     echo "Error: $1 is not a valid protocol, please choose from the supported list of protocols"
     exit 1
 fi
 
 exit 0