diff --git a/lib/element.js b/lib/element.js
index 640d8c7..a8e78b7 100644
--- a/lib/element.js
+++ b/lib/element.js
@@ -129,7 +129,7 @@ function attribute(ctx, key, value) {
 /* Stringify the attribute name. */
 function attributeName(ctx, key) {
   var info = information(key) || {};
-  var name = info.name || kebab(key);
+  var name = info.name || (ctx.allowCamelCased ? key : kebab(key));
 
   if (
     name.slice(0, DATA.length) === DATA &&
diff --git a/lib/index.js b/lib/index.js
index 5e78c8f..c756944 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -82,6 +82,7 @@ function toHTML(node, options) {
     dangerous: settings.allowDangerousHTML,
     voids: settings.voids || voids.concat(),
     entities: settings.entities || {},
-    close: settings.closeSelfClosing
+    close: settings.closeSelfClosing,
+    allowCamelCased: settings.allowCamelCasedAttributes || false
   }, node);
 }
diff --git a/test/element.js b/test/element.js
index 9d7181d..aa4ac80 100644
--- a/test/element.js
+++ b/test/element.js
@@ -75,5 +75,13 @@ test('`element`', function (t) {
     'should support `<template>`s content'
   );
 
+  t.deepEqual(
+    to(h('svg', {viewBox: '0 0 400000 200', preserveAspectRatio: 'xMinYMin slice'}), {
+      allowCamelCasedAttributes: true
+    }),
+    '<svg viewBox="0 0 400000 200" preserveAspectRatio="xMinYMin slice"></svg>',
+    'should support camelCased attribute name like "viewBox"'
+  );
+
   t.end();
 });