diff --git a/src/freedombone-utils-dns b/src/freedombone-utils-dns
index 33260b86..1c466a19 100755
--- a/src/freedombone-utils-dns
+++ b/src/freedombone-utils-dns
@@ -230,8 +230,7 @@ function add_ddns_domain {
     fi
 
     if ! grep -q "$CURRENT_DDNS_DOMAIN" "${INADYN_CONFIG_FILE}"; then
-        DDNS_HOSTNAMES=$(grep 'hostname ' "${INADYN_CONFIG_FILE}"| awk -F '{' '{print $2}' | sed 's| }||g')
-        sed -i "s|hostname .*|hostname       = {${DDNS_HOSTNAMES}, ${CURRENT_DDNS_DOMAIN} }|g" "${INADYN_CONFIG_FILE}"
+        sed -i "s|hostname .*|hostname       = $DEFAULT_DOMAIN_NAME"
     fi
     chmod 600 "${INADYN_CONFIG_FILE}"