diff --git a/src/Parser/JsonParser.php b/src/Parser/JsonParser.php
index 13240c6..ad28774 100644
--- a/src/Parser/JsonParser.php
+++ b/src/Parser/JsonParser.php
@@ -107,6 +107,7 @@ public function read()
                 goto value;
 
             case self::$stateDocumentEnd:
+                $names = [null];
                 if ($token[0] !== Tokenizer::T_EOF) {
                     throw new ParseException($this->getExceptionMessage($token));
                 }