1 files changed, 2 insertions, 2 deletions
diff --git a/src/UtfString.php b/src/UtfString.php
index 0d2e0c5..9ae70f6 100644
--- a/src/UtfString.php
+++ b/src/UtfString.php
@@ -75,7 +75,7 @@ class UtfString implements \ArrayAccess
         $this->byteIdx = 0;
         $this->charIdx = 0;
         $this->byteLen = mb_strlen($str, '8bit');
-        if (! mb_check_encoding($str, 'UTF-8')) {
+        if (!mb_check_encoding($str, 'UTF-8')) {
             $this->charLen = 0;
         } else {
             $this->charLen = mb_strlen($str, 'UTF-8');
@@ -120,7 +120,7 @@ class UtfString implements \ArrayAccess
             while ($delta++ < 0) {
                 do {
                     $byte = ord($this->str[--$this->byteIdx]);
-                } while ((128 <= $byte) && ($byte < 192));
+                } while (($byte >= 128) && ($byte < 192));
                 --$this->charIdx;
             }
         }