diff --git a/resources/compiled_coffeescript.zip b/resources/compiled_coffeescript.zip
index 0f6b8c3e7a..8e45c8fa6b 100644
Binary files a/resources/compiled_coffeescript.zip and b/resources/compiled_coffeescript.zip differ
diff --git a/resources/viewer/mathjax/jax/output/SVG/autoload/multiline.js b/resources/viewer/mathjax/jax/output/SVG/autoload/multiline.js
index 30bbe2c45c..4ee0ce4f7a 100644
--- a/resources/viewer/mathjax/jax/output/SVG/autoload/multiline.js
+++ b/resources/viewer/mathjax/jax/output/SVG/autoload/multiline.js
@@ -187,7 +187,7 @@ MathJax.Hub.Register.StartupHook("SVG Jax Ready",function () {
       //    fill it with the proper elements,
       //    and clean up the bbox
       //
-      line = BBOX();
+      var line = BBOX();
       state.first = broken; state.last = true;
       this.SVGmoveLine(start,end,line,state,values);
       line.Clean();
diff --git a/src/calibre/ebooks/oeb/display/mathjax.coffee b/src/calibre/ebooks/oeb/display/mathjax.coffee
index cd130c85c8..14633b8fbc 100644
--- a/src/calibre/ebooks/oeb/display/mathjax.coffee
+++ b/src/calibre/ebooks/oeb/display/mathjax.coffee
@@ -39,7 +39,7 @@ class MathJax
             showMathMenu: false,
             extensions: ["tex2jax.js", "asciimath2jax.js", "mml2jax.js"],
             jax: ["input/TeX","input/MathML","input/AsciiMath","output/SVG"],
-            // SVG : { linebreaks : { automatic : true } },
+            SVG : { linebreaks : { automatic : true } },
             TeX: {
                 extensions: ["AMSmath.js","AMSsymbols.js","noErrors.js","noUndefined.js"]
             }