diff --git a/lib/dns.sh b/lib/dns.sh
index f087cfa..4a76c77 100644
--- a/lib/dns.sh
+++ b/lib/dns.sh
@@ -78,13 +78,13 @@ raw_to_json_obj() {
 json_array_to_bash() {
   local retvar=${1:-REPLY}
 
-  local __values=()
+  local _values=()
   while IFS=$NEWLINE read -r line; do
-    __values+=("$("$JQ" --raw-output --compact-output '.[] | @sh' <<<"$line")")
+    _values+=("$("$JQ" --raw-output --compact-output '.[] | @sh' <<<"$line")")
   done < <(cat -)
   
   declare -g -a $retvar
-  eval "$retvar=(${__values[@]})"
+  eval "$retvar=(${_values[@]})"
 }
 
 bash_array_to_json() {
@@ -164,15 +164,15 @@ dns_get_base_config() {
   local base_config=${BASE_CONFIG[$view]}
   [ -z "$base_config" ] && echo "ERROR: no base config found for view -- '$view'" >&2 && return 1
 
-  local __zone_dir __conf_dir __conf_file
-  IFS=":" read -r __zone_dir __conf_dir __conf_file <<<"$base_config"
-  [ -z "$__zone_dir" -o -z "$__conf_dir" -o -z "$__conf_file" ] && echo "ERROR: invalid BASE_CONFIG for view -- '$view'" >&2 && return 2
-  ! [ -d "$__conf_dir" ] && echo "ERROR: conf dir: no such directory -- '$__conf_dir'" >&2 && return 3
-  ! [ -d "$__zone_dir" ] && echo "ERROR: zone dir: no such directory -- '$__zone_dir'" >&2 && return 4
+  local zone_dir conf_dir conf_file
+  IFS=":" read -r zone_dir conf_dir conf_file <<<"$base_config"
+  [ -z "$zone_dir" -o -z "$conf_dir" -o -z "$conf_file" ] && echo "ERROR: invalid BASE_CONFIG for view -- '$view'" >&2 && return 2
+  ! [ -d "$conf_dir" ] && echo "ERROR: conf dir: no such directory -- '$conf_dir'" >&2 && return 3
+  ! [ -d "$zone_dir" ] && echo "ERROR: zone dir: no such directory -- '$zone_dir'" >&2 && return 4
 
-  declare -g $zone_dir_retvar="$__zone_dir"
-  declare -g $conf_dir_retvar="$__conf_dir"
-  declare -g $conf_file_retvar="$__conf_file"
+  declare -g $zone_dir_retvar="$zone_dir"
+  declare -g $conf_dir_retvar="$conf_dir"
+  declare -g $conf_file_retvar="$conf_file"
 }