diff --git a/test-e2e/manager-basic.js b/test-e2e/manager-basic.js
index a438d3b7d..09c30948b 100644
--- a/test-e2e/manager-basic.js
+++ b/test-e2e/manager-basic.js
@@ -1,5 +1,6 @@
 import { test } from 'brittle'
 import { MapeoManager } from '../src/mapeo-manager.js'
+import { KeyManager } from '@mapeo/crypto'
 
 test('Managing multiple projects', async (t) => {
   const manager = new MapeoManager()
@@ -12,17 +13,20 @@ test('Managing multiple projects', async (t) => {
     'no projects exist when manager is initially created'
   )
 
-  const createdProjectIds = [
-    await manager.createProject(),
-    await manager.createProject(),
-    await manager.createProject(),
-  ]
+  const createdProjectId = await manager.createProject()
+
+  const addedProjectId =
+    KeyManager.generateProjectKeypair().publicKey.toString('hex')
+
+  await manager.addProject(addedProjectId)
+
+  const existingProjectIds = [createdProjectId, addedProjectId]
 
   const allProjects = await manager.listProjects()
 
-  t.is(allProjects.length, createdProjectIds.length)
+  t.is(allProjects.length, existingProjectIds.length)
   t.ok(
-    allProjects.every((p) => createdProjectIds.includes(p.projectId)),
+    allProjects.every((p) => existingProjectIds.includes(p.projectId)),
     'all created projects are listed'
   )
 })