diff --git a/lib/assert/macros.js b/lib/assert/macros.js
index 1f5168e..14c3de3 100644
--- a/lib/assert/macros.js
+++ b/lib/assert/macros.js
@@ -2,9 +2,7 @@ var assert = require('assert');
 
 var messages = {
     'equal'       : "expected {expected},\n\tgot\t {actual} ({operator})",
-    'notEqual'    : "didn't expect {actual} ({operator})",
-    'throws'      : "expected {expected} to be thrown",
-    'doesNotThrow': "didn't expect {actual} to be thrown",
+    'notEqual'    : "didn't expect {actual} ({operator})"
 };
 messages['strictEqual']    = messages['deepEqual']    = messages['equal'];
 messages['notStrictEqual'] = messages['notDeepEqual'] = messages['notEqual'];