diff --git a/unpacked/jax/output/CommonHTML/autoload/ms.js b/unpacked/jax/output/CommonHTML/autoload/ms.js
index 72cb20452..3497dd636 100644
--- a/unpacked/jax/output/CommonHTML/autoload/ms.js
+++ b/unpacked/jax/output/CommonHTML/autoload/ms.js
@@ -44,8 +44,8 @@ MathJax.Hub.Register.StartupHook("CommonHTML Jax Ready",function () {
       //  Get the quotes to use
       //
       var values = this.getValues("lquote","rquote");
-      if (!this.hasValue("lquote")) values.lquote = "\u201C";
-      if (!this.hasValue("rquote")) values.rquote = "\u201D";
+      if (!this.hasValue("lquote") || values.lquote === '"') values.lquote = "\u201C";
+      if (!this.hasValue("rquote") || values.rquote === '"') values.rquote = "\u201D";
       //
       //  Add the left quote, the child nodes, and the right quote
       //  FIXME:  should the quotation marks be in MML.VARIANT.NORMAL?