1 files changed, 1 insertions, 1 deletions
diff --git a/pandoc.hs b/pandoc.hs
index c5a9d3a95..a9bea12c6 100644
--- a/pandoc.hs
+++ b/pandoc.hs
@@ -814,7 +814,7 @@ options =
                   (\arg opt -> do
                       let url' = case arg of
                                       Just u   -> u
-                                      Nothing  -> "http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"
+                                      Nothing  -> "//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"
                       return opt { optHTMLMathMethod = MathJax url'})
                   "URL")
                  "" -- "Use MathJax for HTML math"