diff --git a/functions/presets.sh b/functions/presets.sh
index c5d8af4a..19fcbcec 100644
--- a/functions/presets.sh
+++ b/functions/presets.sh
@@ -128,7 +128,7 @@ build_preset_config() {
                     create_dir "$(realpath "$(dirname "$read_target_file")")"
                     echo "$read_setting_name = \""$new_setting_value"\"" > "$read_target_file"
                   else
-                    if [[ -z $(grep "$read_setting_name" "$read_target_file") ]]; then
+                    if [[ -z $(grep -o -P "^$read_setting_name\b" "$read_target_file") ]]; then
                       add_setting "$read_target_file" "$read_setting_name" "$new_setting_value" "$read_config_format" "$section"
                     else
                       set_setting_value "$read_target_file" "$read_setting_name" "$new_setting_value" "$read_config_format" "$section"