diff --git a/webapp/start.sh b/webapp/start.sh
index 3826966..3bfc7dc 100755
--- a/webapp/start.sh
+++ b/webapp/start.sh
@@ -15,7 +15,15 @@ php_cfg_gen() {
 	if [ -e "$cfg_file" ]; then
 		if grep -q "$cfg_setting" "$cfg_file"; then
 			echo "Setting $cfg_setting = $cfg_value in $cfg_file"
-			sed -ri "s#(\s*define).+${cfg_setting}.+#\define(\x27${cfg_setting}\x27, \x27${cfg_value}\x27\);#g" "$cfg_file"
+			case $cfg_value in
+			true|TRUE|false|FALSE)
+				echo boolean value
+				sed -ri "s#(\s*define).+${cfg_setting}.+#\tdefine(\x27${cfg_setting}\x27, ${cfg_value}\);#g" "$cfg_file"
+				;;
+			*)
+				sed -ri "s#(\s*define).+${cfg_setting}.+#\tdefine(\x27${cfg_setting}\x27, \x27${cfg_value}\x27\);#g" "$cfg_file"
+				;;
+			esac
 		else
 			echo "Error: Config option $cfg_setting not found in $cfg_file"
 			cat "$cfg_file"