diff --git a/unpacked/jax/input/MathML/jax.js b/unpacked/jax/input/MathML/jax.js
index 2b6d9e877..08fffba94 100644
--- a/unpacked/jax/input/MathML/jax.js
+++ b/unpacked/jax/input/MathML/jax.js
@@ -140,10 +140,11 @@
         if (name.match(/^_moz-math-((column|row)(align|line)|font-style)$/)) continue;
         var value = node.attributes[i].value;
         value = this.filterAttribute(name,value);
+        var defaults = (mml.type === "mstyle" ? MML.math.prototype.defaults : mml.defaults);
         if (value != null) {
           if (value.toLowerCase() === "true") {value = true}
             else if (value.toLowerCase() === "false") {value = false}
-          if (mml.defaults[name] != null || MML.copyAttributes[name])
+          if (defaults[name] != null || MML.copyAttributes[name])
             {mml[name] = value} else {mml.attr[name] = value}
           mml.attrNames.push(name);
         }
diff --git a/unpacked/jax/output/NativeMML/jax.js b/unpacked/jax/output/NativeMML/jax.js
index 4d0a267f4..99e68dcb6 100644
--- a/unpacked/jax/output/NativeMML/jax.js
+++ b/unpacked/jax/output/NativeMML/jax.js
@@ -490,10 +490,9 @@
       //    and set those in the tag's attribute list
       //
       NativeMMLattributes: function (tag) {
-	var defaults = this.defaults;
+	var defaults = (this.type === "mstyle" ? MML.math.prototype.defaults : this.defaults);
 	var copy = (this.attrNames||MML.copyAttributeNames), skip = MML.skipAttributes;
         if (!this.attrNames) {
-          if (this.type === "mstyle") {defaults = MML.math.prototype.defaults}
           for (var id in defaults) {if (!skip[id] && defaults.hasOwnProperty(id)) {
 	    if (this[id] != null && this[id] !== defaults[id]) {tag.setAttribute(id,this.NativeMMLattribute(this[id]))}
           }}