diff --git a/index.js b/index.js
index 893140f..c653f9b 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,5 @@
 var hat = require('hat');
 
 module.exports = function cat() {
-  return 'c' + hat().substring(1);
+  return 'k' + hat().substring(1);
 };
diff --git a/test/index.test.js b/test/index.test.js
index 75a99e4..b81bc0d 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -2,9 +2,9 @@ var test = require('tape');
 var cat = require('..');
 
 for (var i = 0; i < 10000; i++) {
-  test('starts with c', function(assert) {
+  test('starts with k', function(assert) {
     var str = cat();
-    assert.equal(str[0], 'c', 'starts with c');
+    assert.equal(str[0], 'k', 'starts with k');
     assert.end();
   });
 }