diff --git a/README.md b/README.md
index ad514df..3ec4113 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ var md = new Remarkable({
   html: false,              // enable html tags in source
   xhtml: false,             // use '/' to close single tags (<br />)
   breaks: true,             // convert '\n' in paragraphs into <br>
-  langprefix: 'language-',  // css language prefix for fenced blocks
+  langPrefix: 'language-',  // css language prefix for fenced blocks
 
   // Should return HTML markup for highlighted text,
   // or empty string to escape source
diff --git a/benchmark/implementations/current/index.js b/benchmark/implementations/current/index.js
index 2bd8e87..e878d9e 100644
--- a/benchmark/implementations/current/index.js
+++ b/benchmark/implementations/current/index.js
@@ -5,7 +5,7 @@ var md = new Remarkable({
   html: true,
   xhtml: true,
   breaks: false,
-  langprefix: 'language-'
+  langPrefix: 'language-'
 });
 
 exports.run = function(data) {
diff --git a/benchmark/profile.js b/benchmark/profile.js
index 8d4245d..5c0db03 100755
--- a/benchmark/profile.js
+++ b/benchmark/profile.js
@@ -10,7 +10,7 @@ var md = new Remarkable({
   html: true,
   xhtml: true,
   breaks: false,
-  langprefix: 'language-'
+  langPrefix: 'language-'
 });
 
 var data = fs.readFileSync(path.join(__dirname, '/samples/cdata.md'), 'utf8');
diff --git a/demo/assets/index.js b/demo/assets/index.js
index 22c4bd5..3f08035 100644
--- a/demo/assets/index.js
+++ b/demo/assets/index.js
@@ -7,7 +7,7 @@
     html: true,
     xhtml: true,
     breaks: false,
-    langprefix: 'language-',
+    langPrefix: 'language-',
 
     // options below are for demo only
     _highlight: false,
diff --git a/demo/index.jade b/demo/index.jade
index 4b640cc..9b804ed 100644
--- a/demo/index.jade
+++ b/demo/index.jade
@@ -45,7 +45,7 @@ html
             input#_highlight(type='checkbox')
             |  highlight
         .form-group
-          input#langprefix.form-control._tip(
+          input#langPrefix.form-control._tip(
             type='input'
             placeholder='language prefix'
             title='css class language prefix for fenced code blocks'
diff --git a/demo/sample.js b/demo/sample.js
index d7cb7c1..85651a4 100644
--- a/demo/sample.js
+++ b/demo/sample.js
@@ -3,7 +3,7 @@ var md = new Remarkable({
   html: false,              // enable html tags in source
   xhtml: false,             // use '/' to close single tags (<br />)
   breaks: true,             // convert '\n' in paragraphs into <br>
-  langprefix: 'language-',  // css language prefix for fenced blocks
+  langPrefix: 'language-',  // css language prefix for fenced blocks
 
   // Should return HTML markup for highlighted text,
   // or empty string to escape source
diff --git a/lib/defaults.js b/lib/defaults.js
index 71b4d11..db9f5dd 100644
--- a/lib/defaults.js
+++ b/lib/defaults.js
@@ -7,7 +7,7 @@ module.exports = {
   html: false,
   xhtml: false,
   breaks: false,
-  level: 10,
-  langprefix: 'language-',
+  maxLevel: 20,
+  langPrefix: 'language-',
   highlight: function (/*str*/) { return ''; }
 };
diff --git a/lib/renderer.js b/lib/renderer.js
index dd91a85..ca38025 100644
--- a/lib/renderer.js
+++ b/lib/renderer.js
@@ -54,7 +54,7 @@ rules.code = function (tokens, idx /*, options*/) {
 rules.fence = function (tokens, idx, options) {
   var token = tokens[idx];
   var langClass = '';
-  var langPrefix = options.langprefix || '';
+  var langPrefix = options.langPrefix || '';
   var params, langName = '';
   var highlighted;
 
diff --git a/lib/rules_block/blockquote.js b/lib/rules_block/blockquote.js
index d3e4728..44f487f 100644
--- a/lib/rules_block/blockquote.js
+++ b/lib/rules_block/blockquote.js
@@ -17,7 +17,7 @@ module.exports = function blockquote(state, startLine, endLine, silent) {
   // check the block quote marker
   if (state.src.charCodeAt(pos++) !== 0x3E/* > */) { return false; }
 
-  if (state.level >= state.options.level) { return false; }
+  if (state.level >= state.options.maxLevel) { return false; }
 
   // we know that it's going to be a valid blockquote,
   // so no point trying to find the end of it in silent mode
diff --git a/lib/rules_block/list.js b/lib/rules_block/list.js
index fac308f..b3e1252 100644
--- a/lib/rules_block/list.js
+++ b/lib/rules_block/list.js
@@ -101,7 +101,7 @@ module.exports = function list(state, startLine, endLine, silent) {
     return false;
   }
 
-  if (state.level >= state.options.level) { return false; }
+  if (state.level >= state.options.maxLevel) { return false; }
 
   // We should terminate list on style change. Remember first one to compare.
   markerCharCode = state.src.charCodeAt(posAfterMarker - 1);
diff --git a/lib/rules_inline/emphasis.js b/lib/rules_inline/emphasis.js
index 29cbcad..3dac210 100644
--- a/lib/rules_inline/emphasis.js
+++ b/lib/rules_inline/emphasis.js
@@ -124,7 +124,7 @@ module.exports = function emphasis(state/*, silent*/) {
     return true;
   }
 
-  if (state.level >= state.options.level) { return false; }
+  if (state.level >= state.options.maxLevel) { return false; }
 
   oldLength = state.tokens.length;
   oldPending = state.pending;
diff --git a/lib/rules_inline/links.js b/lib/rules_inline/links.js
index 6c5cdbb..79d068c 100644
--- a/lib/rules_inline/links.js
+++ b/lib/rules_inline/links.js
@@ -28,7 +28,7 @@ function links(state) {
   }
 
   if (marker !== 0x5B/* [ */) { return false; }
-  if (state.level >= state.options.level) { return false; }
+  if (state.level >= state.options.maxLevel) { return false; }
 
   labelStart = start + 1;
   labelEnd = parseLinkLabel(state, start);
diff --git a/support/specsplit.js b/support/specsplit.js
index 8a2642c..2ef0d70 100755
--- a/support/specsplit.js
+++ b/support/specsplit.js
@@ -61,7 +61,7 @@ readFile(options.spec, 'utf8', function (error, input) {
         html: true,
         breaks: false,
         xhtml: true,
-        langprefix: 'language-'
+        langPrefix: 'language-'
       });
 
   if (error) {
diff --git a/test/remarkable.js b/test/remarkable.js
index 3f562ad..6cb3e6e 100644
--- a/test/remarkable.js
+++ b/test/remarkable.js
@@ -12,7 +12,7 @@ var Remarked = require('../');
 describe('Default', function () {
   var md = new Remarked({
     breaks: false,
-    langprefix: ''
+    langPrefix: ''
   });
 
   utils.addTests(path.join(__dirname, 'fixtures/remarkable'), md);
diff --git a/test/remarked.js b/test/remarked.js
index d62f812..fe3b531 100644
--- a/test/remarked.js
+++ b/test/remarked.js
@@ -15,7 +15,7 @@ describe('remarked', function () {
   // Set options, to give output more close to remarked
   md.set({
     breaks: false,
-    langprefix: 'lang-'
+    langPrefix: 'lang-'
   });
 
   utils.addTests(path.join(__dirname, 'fixtures/remarked_ok'), md);
diff --git a/test/stmd.js b/test/stmd.js
index c4c759d..0427aef 100644
--- a/test/stmd.js
+++ b/test/stmd.js
@@ -14,7 +14,7 @@ describe('stmd', function () {
     html: true,
     xhtml: true,
     breaks: false,
-    langprefix: 'language-'
+    langPrefix: 'language-'
   });
 
   utils.addSpecTests(path.join(__dirname, 'fixtures/stmd/good.txt'), md);