diff --git a/package.json b/package.json
index c30438681..e95bef068 100644
--- a/package.json
+++ b/package.json
@@ -66,6 +66,7 @@
   },
   "devDependencies": {
     "aegir": "^13.0.6",
+    "browser-process-platform": "^0.1.1",
     "chai": "^4.1.2",
     "cross-env": "^5.1.3",
     "dirty-chai": "^2.0.1",
diff --git a/test/diag.spec.js b/test/diag.spec.js
index 216f0ac9a..3a2bb07a5 100644
--- a/test/diag.spec.js
+++ b/test/diag.spec.js
@@ -5,7 +5,7 @@ const chai = require('chai')
 const dirtyChai = require('dirty-chai')
 const expect = chai.expect
 chai.use(dirtyChai)
-const os = require('os')
+const platform = require('browser-process-platform')
 
 const IPFSApi = require('../src')
 const f = require('./utils/factory')
@@ -14,7 +14,7 @@ describe('.diag', function () {
   this.timeout(50 * 1000)
 
   // go-ipfs does not support these on Windows
-  if (os.platform() === 'win32') { return }
+  if (platform === 'win32') { return }
 
   let ipfsd
   let ipfs