diff --git a/src/npm/publish.js b/src/npm/publish.js
index d92e82c4..1af9439a 100644
--- a/src/npm/publish.js
+++ b/src/npm/publish.js
@@ -1,7 +1,8 @@
+const path = require('path')
 const npmPacklist = require('npm-packlist')
 
 module.exports = {getPublishableFiles}
 
-function getPublishableFiles(path) {
-  return npmPacklist({path})
+function getPublishableFiles(basePath) {
+  return npmPacklist({basePath}).then(files => files.map(file => path.normalize(file)))
 }
diff --git a/test/verify.test.js b/test/verify.test.js
index 757e261d..8e49268a 100644
--- a/test/verify.test.js
+++ b/test/verify.test.js
@@ -5,7 +5,7 @@ const pkg = require('../package.json')
 
 const baseFixturesDir = path.join(__dirname, 'fixtures', 'verify')
 const sanipack = path.resolve(__dirname, '..', pkg.bin.sanipack)
-const normalize = (dirPath) => dirPath.replace(/\//g, path.sep)
+const normalize = (dirPath) => path.normalize(dirPath)
 const options = {timeout: 15000}
 
 tap.test('can verify valid plugin (in cwd)', options, async (t) => {