diff --git a/source/Parser.php b/source/Parser.php
index <HASH>..<HASH> 100755
--- a/source/Parser.php
+++ b/source/Parser.php
@@ -15,7 +15,7 @@ define(
 
 class Parser
 {
-    private $macro = [];
+    private $macros = [];
     private $compilers = [];
 
     public function addMacro($macro)
Fix typeo in Parser

discovered by @phpstan

Fixes #<I>