diff --git a/build/tasks/build-task.coffee b/build/tasks/build-task.coffee
index d173e3599..afd1eb350 100644
--- a/build/tasks/build-task.coffee
+++ b/build/tasks/build-task.coffee
@@ -174,7 +174,7 @@ module.exports = (grunt) ->
     apmPackageDir = path.join(apmInstallDir, 'node_modules', 'atom-package-manager')
     for name in fs.readdirSync(apmPackageDir)
       fs.renameSync path.join(apmPackageDir, name), path.join(apmInstallDir, name)
-    fs.unlinkSync(apmPackageDir)
+    fs.rmdirSync(apmPackageDir)
 
     if process.platform is 'darwin'
       grunt.file.recurse path.join('build', 'resources', 'mac'), (sourcePath, rootDirectory, subDirectory='', filename) ->