diff --git a/pandoc.hs b/pandoc.hs
index c77b34265..b686dbb90 100644
--- a/pandoc.hs
+++ b/pandoc.hs
@@ -836,7 +836,7 @@ options =
     , Option "" ["mathjax"]
                  (OptArg
                   (\arg opt -> do
-                      let url' = fromMaybe "https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_CHTML" arg
+                      let url' = fromMaybe "https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_CHTML-full" arg
                       return opt { optHTMLMathMethod = MathJax url'})
                   "URL")
                  "" -- "Use MathJax for HTML math"