diff --git a/app.js b/app.js
index d211058..db1172e 100644
--- a/app.js
+++ b/app.js
@@ -15,6 +15,13 @@ function handleRequest(method, path, body) {
     notes.set(note.id, note);
     return { status: 201, body: note };
   }
+  const deleteMatch = /^\/notes\/(\d+)$/.exec(path);
+  if (method === 'DELETE' && deleteMatch) {
+    if (!notes.delete(Number(deleteMatch[1]))) {
+      return { status: 404, body: { error: 'not found' } };
+    }
+    return { status: 204, body: undefined };
+  }
   return { status: 404, body: { error: 'not found' } };
 }
 
diff --git a/run-tests.js b/run-tests.js
index 3278093..bf22fb9 100644
--- a/run-tests.js
+++ b/run-tests.js
@@ -14,4 +14,14 @@ assert.strictEqual(listed.body.length, 1);
 assert.strictEqual(handleRequest('POST', '/notes', {}).status, 400);
 assert.strictEqual(handleRequest('GET', '/nope', null).status, 404);
 
+const doomed = handleRequest('POST', '/notes', { text: 'pack headlamp' });
+assert.deepStrictEqual(
+  handleRequest('DELETE', `/notes/${doomed.body.id}`, null),
+  { status: 204, body: undefined },
+);
+assert.strictEqual(handleRequest('GET', '/notes', null).body.length, 1);
+assert.strictEqual(handleRequest('DELETE', `/notes/${doomed.body.id}`, null).status, 404);
+assert.strictEqual(handleRequest('DELETE', '/notes/999', null).status, 404);
+assert.strictEqual(handleRequest('DELETE', '/notes/abc', null).status, 404);
+
 console.log('all notes tests passed');