diff --git a/lib/transform.js b/lib/transform.js
index 47f70f5..d8eeed2 100644
--- a/lib/transform.js
+++ b/lib/transform.js
@@ -137,7 +137,7 @@ exports = module.exports = function transform(content, mode, maxHeaderNo) {
   if (linkedHeaders.length === 0) return { transformed: false };
 
   // 4 spaces required for proper indention on Bitbucket
-  var indentionAmount = (mode === 'bitbucket.org' ? '    ' : '  ');
+  var indentation = mode === 'bitbucket.org' ? '    ' : '  ';
 
   var toc =
       '**Table of Contents**  *generated with [DocToc](https://github.com/thlorenz/doctoc)*'
@@ -145,7 +145,7 @@ exports = module.exports = function transform(content, mode, maxHeaderNo) {
     + linkedHeaders
         .map(function (x) {
           var indent = _(_.range(x.rank - lowestRank))
-            .reduce(function (acc, x) { return acc + indentionAmount; }, '');
+            .reduce(function (acc, x) { return acc + indentation; }, '');
 
           return indent + '- ' + x.anchor;
         })