diff --git a/README.md b/README.md
index eb0624b..424c0ef 100644
--- a/README.md
+++ b/README.md
@@ -38,11 +38,15 @@ $ npm install enable --save
 var enable = require('enable');
 
 if (enable.generator) {
-  console.log('support generator');
+  console.log('supports generator');
 }
 
 if (enable.let) {
-  console.log('support let a = 1;');
+  console.log('supports `let a = 1;`');
+}
+
+if (enable.const) {
+	console.log('supports `const salary = 0;`')
 }
 ```
 
diff --git a/index.js b/index.js
index 6d968c6..01d5a94 100644
--- a/index.js
+++ b/index.js
@@ -32,3 +32,12 @@ try {
 } catch (_) {
   exports.let = false;
 }
+
+// const
+try {
+  eval('(function () { const fubar = 42; return typeof fubar === "number"; }())');
+  exports.const = true;
+} catch (_) {
+  exports.const = false;
+}
+
diff --git a/test/enable.test.js b/test/enable.test.js
index be86d14..b4f3c1b 100644
--- a/test/enable.test.js
+++ b/test/enable.test.js
@@ -32,4 +32,11 @@ describe('enable.test.js', function () {
       enable.let.should.equal(true);
     }
   });
+
+  it("should detect const", function() {
+    enable.const.should.be.a.Boolean;
+    if (process.version.indexOf('v0.10.') === 0) {
+      enable.const.should.equal(true);
+    }
+  });
 });