diff --git a/dnsapi/dns_baidu.sh b/dnsapi/dns_baidu.sh
index dfad8eeb..19641006 100644
--- a/dnsapi/dns_baidu.sh
+++ b/dnsapi/dns_baidu.sh
@@ -120,7 +120,7 @@ _baidu_run_with_fallback() {
 }
 
 _baidu_engine_order() {
-  _pref="$(_lower_case "$(_baidu_trim_ws "${Baidu_API_Preference:-auto}")")"
+  _pref="$(_baidu_trim_ws "${Baidu_API_Preference:-auto}" | _lower_case)"
   case "$_pref" in
   legacy)
     printf "%s" "legacy new"
diff --git a/dnsapi/dns_bhosted.sh b/dnsapi/dns_bhosted.sh
index 46ddd5dd..31da0099 100644
--- a/dnsapi/dns_bhosted.sh
+++ b/dnsapi/dns_bhosted.sh
@@ -283,7 +283,7 @@ _bhosted_response_has_error() {
   fi
 
   # Fallback for unexpected/non-XML responses
-  _resp_lc="$(_lower_case "$_resp")"
+  _resp_lc="$(printf "%s\n" "$_resp" | _lower_case)"
 
   if _contains "$_resp_lc" "error"; then
     _debug "Detected 'error' in response"