diff --git a/unpacked/jax/output/FastHTML/jax.js b/unpacked/jax/output/FastHTML/jax.js
index e02122a3c..a9767cede 100644
--- a/unpacked/jax/output/FastHTML/jax.js
+++ b/unpacked/jax/output/FastHTML/jax.js
@@ -197,7 +197,9 @@
 	  className:"MathJax_FHTML", id:jax.inputID+"-Frame", isMathJax:true, jaxID:this.id,
           oncontextmenu:EVENT.Menu, onmousedown: EVENT.Mousedown,
           onmouseover:EVENT.Mouseover, onmouseout:EVENT.Mouseout, onmousemove:EVENT.Mousemove,
-	  onclick:EVENT.Click, ondblclick:EVENT.DblClick
+	  onclick:EVENT.Click, ondblclick:EVENT.DblClick,
+          // Added for keyboard accessible menu.
+          onkeydown: EVENT.Keydown, tabIndex: "0"  
         });
 	if (HUB.Browser.noContextMenu) {
 	  span.ontouchstart = TOUCH.start;