diff --git a/spec.html b/spec.html
index 511a46d609c..2fa1606c437 100644
--- a/spec.html
+++ b/spec.html
@@ -42064,6 +42064,17 @@ <h1>Initializers in ForIn Statement Heads</h1>
         1. Let _keyResult_ be ? ForIn/OfHeadEvaluation(&laquo; &raquo;, |Expression|, ~enumerate~).
         1. Return ? ForIn/OfBodyEvaluation(|BindingIdentifier|, |Statement|, _keyResult_, ~enumerate~, ~varBinding~, _labelSet_).
       </emu-alg>
+      <p>The runtime semantics of Evaluation are augmented with the following:</p>
+      <emu-grammar>
+        BindingIdentifier :
+          Identifier
+          `yield`
+          `await`
+      </emu-grammar>
+      <emu-alg>
+        1. Let _bindingId_ be StringValue of |BindingIdentifier|.
+        1. Return ? ResolveBinding(_bindingId_).
+      </emu-alg>
     </emu-annex>
 
     <emu-annex id="sec-IsHTMLDDA-internal-slot">