diff --git a/rootfs/usr/local/etc/docker/init.d/00-named.sh b/rootfs/usr/local/etc/docker/init.d/00-named.sh
index bae1afd..af8ed0a 100755
--- a/rootfs/usr/local/etc/docker/init.d/00-named.sh
+++ b/rootfs/usr/local/etc/docker/init.d/00-named.sh
@@ -183,10 +183,10 @@ ADDITIONAL_CONFIG_DIRS=""
 CMD_ENV=""
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 # Overwrite based on file/directory
-[ -f "$CONF_DIR/secrets/rndc.key" ] && KEY_RNDC="$(grep -vE '#|^$' "$CONF_DIR/secrets/rndc.key" | sed 's| ||g' | head -n1)"
-[ -f "$CONF_DIR/secrets/dhcp.key" ] && KEY_DHCP="$(grep -vE '#|^$' "$CONF_DIR/secrets/dhcp.key" | sed 's| ||g' | head -n1)"
-[ -f "$CONF_DIR/secrets/backup.key" ] && KEY_BACKUP="$(grep -vE '#|^$' "$CONF_DIR/secrets/backup.key" | sed 's| ||g' | head -n1)"
-[ -f "$CONF_DIR/secrets/certbot.key" ] && KEY_CERTBOT="$(grep -vE '#|^$' "$CONF_DIR/secrets/certbot.key" | sed 's| ||g' | head -n1)"
+[ -f "$CONF_DIR/secrets/rndc.key" ] && KEY_RNDC="$(grep -vE '#|^$' "$CONF_DIR/secrets/rndc.key" | sed 's| ||g' | head -n1 | grep '^' || echo "$KEY_RNDC")"
+[ -f "$CONF_DIR/secrets/dhcp.key" ] && KEY_DHCP="$(grep -vE '#|^$' "$CONF_DIR/secrets/dhcp.key" | sed 's| ||g' | head -n1 | grep '^' || echo "$KEY_DHCP")"
+[ -f "$CONF_DIR/secrets/backup.key" ] && KEY_BACKUP="$(grep -vE '#|^$' "$CONF_DIR/secrets/backup.key" | sed 's| ||g' | head -n1 | grep '^' || echo "$KEY_BACKUP")"
+[ -f "$CONF_DIR/secrets/certbot.key" ] && KEY_CERTBOT="$(grep -vE '#|^$' "$CONF_DIR/secrets/certbot.key" | sed 's| ||g' | head -n1 | grep '^' || echo "$KEY_CERTBOT")"
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 # Per Application Variables or imports
 [ -f "$CONF_DIR/named.conf" ] && NAMED_CONFIG_FILE="$CONF_DIR/named.conf" && NAMED_CONFIG_COPY="yes" || NAMED_CONFIG_FILE="$ETC_DIR/named.conf"