--- a/layout/mathml/mathml.css
+++ b/layout/mathml/mathml.css
@@ -200,17 +200,17 @@ math[display="inline"] {
 }
 [mathvariant="double-struck"] {
   font-family: MathJax_AMS, STIXGeneral, DejaVu Serif, DejaVu Sans, Cambria, Cambria Math, Times, Lucida Sans Unicode, OpenSymbol, Standard Symbols L, serif;
 }
 [mathvariant="script"] {
   font-family: MathJax_Script, STIXGeneral, DejaVu Serif, DejaVu Sans, Cambria, Cambria Math, Times, Lucida Sans Unicode, OpenSymbol, Standard Symbols L, serif;
 }
 [mathvariant="fraktur"] {
-  font-style: MathJax_Fraktur, STIXGeneral, DejaVu Serif, DejaVu Sans, Cambria, Cambria Math, Times, Lucida Sans Unicode, OpenSymbol, Standard Symbols L, serif;
+  font-family: MathJax_Fraktur, STIXGeneral, DejaVu Serif, DejaVu Sans, Cambria, Cambria Math, Times, Lucida Sans Unicode, OpenSymbol, Standard Symbols L, serif;
 }
 
 /**************************************************************************/
 /* tags with generated content                                            */
 /**************************************************************************/
 
 ms {
   display: inline;