diff --git a/src/Extractors/PhpCode.php b/src/Extractors/PhpCode.php
index 1626c61e..ab9dfb37 100644
--- a/src/Extractors/PhpCode.php
+++ b/src/Extractors/PhpCode.php
@@ -44,7 +44,7 @@ public static function fromString($string, Translations $translations = null, $f
     public static function convertString($value)
     {
         if ($value[0] === "'") {
-            return substr(str_replace(['\\\\', '\\\''], ['\\', '\''], $value), 1, -1);
+            return strtr(substr($value, 1, -1), array('\\\\' => '\\', '\\\'' => '\''));
         }
 
         $value = substr($value, 1, -1);