diff --git a/unpacked/config/default.js b/unpacked/config/default.js
index 13bbfc58b..878efdd38 100644
--- a/unpacked/config/default.js
+++ b/unpacked/config/default.js
@@ -972,7 +972,7 @@ MathJax.Hub.Config({
       "TeX": ["TeX", "LaTeX", "application/x-tex"],
       "StarMath": ["StarMath 5.0"],
       "Maple": ["Maple"],
-      "Content MathML": ["MathML-Content", "application/mathml-content+xml"],
+      "ContentMathML": ["MathML-Content", "application/mathml-content+xml"],
       "OpenMath": ["OpenMath"]
     },
 
diff --git a/unpacked/extensions/MathMenu.js b/unpacked/extensions/MathMenu.js
index b5696217b..78fa39161 100644
--- a/unpacked/extensions/MathMenu.js
+++ b/unpacked/extensions/MathMenu.js
@@ -62,7 +62,7 @@
       "TeX": ["TeX", "LaTeX", "application/x-tex"],
       "StarMath": ["StarMath 5.0"],
       "Maple": ["Maple"],
-      "Content MathML": ["MathML-Content", "application/mathml-content+xml"],
+      "ContentMathML": ["MathML-Content", "application/mathml-content+xml"],
       "OpenMath": ["OpenMath"]
     },