diff --git a/unpacked/extensions/HelpDialog.js b/unpacked/extensions/HelpDialog.js
index e26d0367e..59ce37752 100644
--- a/unpacked/extensions/HelpDialog.js
+++ b/unpacked/extensions/HelpDialog.js
@@ -162,7 +162,7 @@
       ["a",{href:"http://www.mathjax.org/"},["www.mathjax.org"]],
       ["span",{id: "MathJax_HelpClose", onclick: HELP.Remove,
                onkeydown: HELP.Keydown, tabIndex: 0, role: "button",
-	       "aria-label": LOCALE._(["HelpDialog","CloseWindow"],"Close window")},
+	       "aria-label": LOCALE._(["HelpDialog","CloseDialog"],"Close help dialog")},
         [["span",{},["\u00D7"]]]
       ]
     ]));
diff --git a/unpacked/extensions/MathMenu.js b/unpacked/extensions/MathMenu.js
index 2bef958ac..775644ddc 100644
--- a/unpacked/extensions/MathMenu.js
+++ b/unpacked/extensions/MathMenu.js
@@ -1062,7 +1062,7 @@
       ["span",{className:"MathJax_MenuClose",id:"MathJax_AboutClose",
                onclick:MENU.About.Remove,
                onkeydown: MENU.About.Keydown, tabIndex: 0, role: "button",
-               "aria-label": _("CloseWindow","Close window")},
+               "aria-label": _("CloseAboutDialog","Close about MathJax dialog")},
         [["span",{},"\u00D7"]]]
     ]);
     if (event.type === "mouseup") about.className += " MathJax_MousePost";