diff --git a/lib/mkdirs/__tests__/issue-93.test.js b/lib/mkdirs/__tests__/issue-93.test.js
index 771694e6..c8b942e0 100644
--- a/lib/mkdirs/__tests__/issue-93.test.js
+++ b/lib/mkdirs/__tests__/issue-93.test.js
@@ -24,12 +24,12 @@ describe('mkdirp: issue-93, win32, when drive does not exist, it should return a
   it('should return a cleaner error than inifinite loop, stack crash', done => {
     const file = 'R:\\afasd\\afaff\\fdfd' // hopefully drive 'r' does not exist on appveyor
     fse.mkdirp(file, err => {
-      assert.strictEqual(err.code, 'ENOENT')
+      assert.strictEqual(err.code, 'EPERM')
 
       try {
         fse.mkdirsSync(file)
       } catch (err) {
-        assert.strictEqual(err.code, 'ENOENT')
+        assert.strictEqual(err.code, 'EPERM')
       }
 
       done()
diff --git a/lib/mkdirs/__tests__/root.test.js b/lib/mkdirs/__tests__/root.test.js
index 2d0974de..48eb3271 100644
--- a/lib/mkdirs/__tests__/root.test.js
+++ b/lib/mkdirs/__tests__/root.test.js
@@ -16,9 +16,9 @@ describe('mkdirp / root', () => {
 
   it('should', done => {
     fse.mkdirp(dir, 0o755, err => {
-      if (err) throw err
+      if (err) return done(err)
       fs.stat(dir, (er, stat) => {
-        if (er) throw er
+        if (er) return done(er)
         assert.ok(stat.isDirectory(), 'target is a directory')
         done()
       })