diff --git a/index.js b/index.js
index 834f8da7..25943502 100644
--- a/index.js
+++ b/index.js
@@ -335,6 +335,11 @@ function parse (args, opts) {
       value = increment
     }
 
+    // Set normalized value when key is in 'normalize' and in 'arrays'
+    if (checkAllAliases(key, flags.normalize) && checkAllAliases(key, flags.arrays)) {
+      value = path.normalize(val)
+    }
+
     var splitKey = key.split('.')
     setKey(argv, splitKey, value)
 
@@ -361,20 +366,18 @@ function parse (args, opts) {
       setKey(argv, x, value)
     })
 
-    var keys = [key].concat(flags.aliases[key] || [])
-    for (var i = 0, l = keys.length; i < l; i++) {
-      if (flags.normalize[keys[i]]) {
-        keys.forEach(function (key) {
-          argv.__defineSetter__(key, function (v) {
-            val = path.normalize(v)
-          })
-
-          argv.__defineGetter__(key, function () {
-            return typeof val === 'string' ? path.normalize(val) : val
-          })
+    // Set normalize getter and setter when key is in 'normalize' but isn't an array
+    if (checkAllAliases(key, flags.normalize) && !checkAllAliases(key, flags.arrays)) {
+      var keys = [key].concat(flags.aliases[key] || [])
+      keys.forEach(function (key) {
+        argv.__defineSetter__(key, function (v) {
+          val = path.normalize(v)
         })
-        break
-      }
+
+        argv.__defineGetter__(key, function () {
+          return typeof val === 'string' ? path.normalize(val) : val
+        })
+      })
     }
   }
 
diff --git a/test/yargs-parser.js b/test/yargs-parser.js
index ca1476c7..00e5b53d 100644
--- a/test/yargs-parser.js
+++ b/test/yargs-parser.js
@@ -236,6 +236,19 @@ describe('yargs-parser', function () {
       a.s = ['', 'path', 'to', 'new', 'dir', '..', '..', ''].join(path.sep)
       a.s.should.equal(['', 'path', 'to', ''].join(path.sep))
     })
+
+    it('should normalize when key is also an array', function () {
+      var a = parser([ '-s', ['', 'tmp', '..', ''].join(path.sep), ['', 'path', 'to', 'new', 'dir', '..', '..', ''].join(path.sep) ], {
+        alias: {
+          s: ['save']
+        },
+        normalize: 's',
+        array: 's'
+      })
+      var expected = [path.sep, ['', 'path', 'to', ''].join(path.sep)]
+      a.should.have.property('s').and.deep.equal(expected)
+      a.should.have.property('save').and.deep.equal(expected)
+    })
   })
 
   describe('alias', function () {