diff --git a/spec.md b/spec.md
index 9d7ef4b..67ee55a 100644
--- a/spec.md
+++ b/spec.md
@@ -1242,7 +1242,7 @@ $instance = new class extends \Foo implements \HandleableInterface {
 
 // Brace on the next line
 // Constructor arguments
-$instance = new class($a) extends \Foo implements
+$instance = new class ($a) extends \Foo implements
     \ArrayAccess,
     \Countable,
     \Serializable