diff --git a/src/BashCharEscape.php b/src/BashCharEscape.php
index 5862ab3..c296a74 100644
--- a/src/BashCharEscape.php
+++ b/src/BashCharEscape.php
@@ -5,9 +5,9 @@
 class BashCharEscape
 {
     public static function escape(
-        string $str,
-        string $lbs,
-        string $hbs,
+        string $str = '',
+        string $lbs = '',
+        string $hbs = '\\',
         string $quote = "'",
         array $over_ride = []
     ): string {