diff --git a/index.html b/index.html
index 80d236b..51d06a5 100644
--- a/index.html
+++ b/index.html
@@ -1062,6 +1062,11 @@ <h3 id="MIDIOutput">
                 {{MIDIAccess}} did not enable [=System Exclusive=] access, throw
                 an <code>NotAllowedError</code> exception.
               </p>
+              <p>
+                If <var>data</var> exceeds the maximum length supported by the
+                implementation or cannot be allocated in internal buffers, throw
+                a <code>RangeError</code> exception.
+              </p>
               <p>
                 If the port is <a data-lt=
                 "MIDIPortDeviceState.disconnected">"disconnected"</a>, throw an