diff --git a/src/Parsing/ParserState.php b/src/Parsing/ParserState.php
index bb17133f..3f911518 100644
--- a/src/Parsing/ParserState.php
+++ b/src/Parsing/ParserState.php
@@ -361,10 +361,7 @@ public function consumeComment()
         return $mComment;
     }
 
-    /**
-     * @return bool
-     */
-    public function isEnd()
+    public function isEnd(): bool
     {
         return $this->iCurrentPosition >= $this->iLength;
     }