diff --git a/index.bs b/index.bs
index 712dfa492..30f333fa8 100644
--- a/index.bs
+++ b/index.bs
@@ -9766,7 +9766,7 @@ Constructors</h5>
 			1. Compare the value of NewTarget with the <a href=
 				"https://tc39.github.io/ecma262/#active-function-object">active
 				function object</a>; if the two are equal, throw a
-				{{TypeError}} is thrown.
+				{{TypeError}}.
 
 				Note: This check prevents the invocation of the constructor
 				directly from JavaScript. The interface object may only