diff --git a/src/Token.php b/src/Token.php
index aee849359..27b0f6371 100644
--- a/src/Token.php
+++ b/src/Token.php
@@ -185,7 +185,7 @@ class Token
      *
      * @var mixed|string|null
      */
-    public $keyword;
+    public $keyword = null;
 
     /**
      * The type of this token.
@@ -221,7 +221,6 @@ public function __construct($token, $type = 0, $flags = 0)
         $this->token = $token;
         $this->type = $type;
         $this->flags = $flags;
-        $this->keyword = null;
         $this->value = $this->extract();
     }
 
diff --git a/src/UtfString.php b/src/UtfString.php
index f8fd3503d..18df4dd3b 100644
--- a/src/UtfString.php
+++ b/src/UtfString.php
@@ -187,8 +187,6 @@ class UtfString implements ArrayAccess, Stringable
     public function __construct($str)
     {
         $this->str = $str;
-        $this->byteIdx = 0;
-        $this->charIdx = 0;
         $this->byteLen = mb_strlen($str, '8bit');
         if (! mb_check_encoding($str, 'UTF-8')) {
             $this->charLen = 0;