diff --git a/src/Php/Constants.php b/src/Php/Constants.php
index 0f8c4786..8794425d 100644
--- a/src/Php/Constants.php
+++ b/src/Php/Constants.php
@@ -51,6 +51,7 @@ class Constants
         'return',
         'static',
         'pipe',
+        'template',
         'errno', // Linux error code
     ];
 }