diff --git a/scripts/cnode-helper-scripts/cntools.sh b/scripts/cnode-helper-scripts/cntools.sh
index 9053f69c4..f975c04c8 100755
--- a/scripts/cnode-helper-scripts/cntools.sh
+++ b/scripts/cnode-helper-scripts/cntools.sh
@@ -2202,7 +2202,7 @@ function main {
                           if [[ -n "${relay_port_enter}" ]]; then
                             if ! isNumber ${relay_port_enter} || [[ ${relay_port_enter} -lt 1 || ${relay_port_enter} -gt 65535 ]]; then
                               println ERROR "${FG_RED}ERROR${NC}: invalid port number!"
-                            elif isValidIPv4 "${relay_ip_enter}" && ! isValidHostnameOrDomain "${relay_ip_enter}"; then
+                            elif isValidIPv4 "${relay_ip_enter}" || isValidHostnameOrDomain "${relay_ip_enter}"; then
                               relay_array+=( "type" "IPv4" "address" "${relay_ip_enter}" "port" "${relay_port_enter}" )
                               relay_output+="--pool-relay-port ${relay_port_enter} --pool-relay-ipv4 ${relay_ip_enter} "
                             else
diff --git a/scripts/cnode-helper-scripts/topologyUpdater.sh b/scripts/cnode-helper-scripts/topologyUpdater.sh
index 52e2b105e..91340ac72 100755
--- a/scripts/cnode-helper-scripts/topologyUpdater.sh
+++ b/scripts/cnode-helper-scripts/topologyUpdater.sh
@@ -155,8 +155,9 @@ if [[ ${TU_FETCH} = "Y" ]]; then
           *) echo "ERROR: Invalid Custom Peer definition '${cpeer}'. Please double check CUSTOM_PEERS definition"
              exit 1 ;;
         esac
-        if [[ ${addr} = *.* ]]; then
-          ! isValidIPv4 "${addr}" && echo "ERROR: Invalid IPv4 address or hostname '${addr}'. Please check CUSTOM_PEERS definition" && continue
+        if ! isValidIPv4 "${addr}" && ! isValidHostnameOrDomain "${addr}"; then
+          echo "ERROR: Invalid IPv4 address or hostname '${addr}'. Please check CUSTOM_PEERS definition"
+          continue
         elif [[ ${addr} = *:* ]]; then
           ! isValidIPv6 "${addr}" && echo "ERROR: Invalid IPv6 address '${addr}'. Please check CUSTOM_PEERS definition" && continue
         fi