diff --git a/CHANGES.md b/CHANGES.md
index 1967973..f3da0e8 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,11 @@
 # Release notes
 
+## 1.2.0
+Sep 19, 2022
+
+- Add _windows_ argument
+- Fix file extension with UNICODE encode
+
 ## 1.1.0
 Sep 19, 2022
 
diff --git a/README.md b/README.md
index c8b7ba5..cdd37a8 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ $ python setup.py install                 # for others
 | -s    | --shuffle      | Casual order                                  |                           |
 | -u    | --unique       | The same files are not placed in the playlist |                           |
 | -c    | --append       | Continue playlist instead of override it      |                           |
+| -w    | --windows      | Windows style folder separator                |                           |
 
 ## Examples
 
@@ -113,6 +114,13 @@ $ python setup.py install                 # for others
 
     ```bash
     mkpl -d "new_collection" -r "my music.m3u" -l http://192.168.1.123/mp3/song1.mp3, http://192.168.1.123/mp3/song2.mp4
+    ```
+    
+13. Create a playlist and set Windows backslash (\) folder separator (for Windows OS)
+
+    ```bash
+    mkpl -d "new_collection" -r "my music.m3u" -w
+    ```
    
 ## Open source
 _mkpl_ is an open source project. Any contribute, It's welcome.
diff --git a/__info__.py b/__info__.py
index d60446a..0a98655 100644
--- a/__info__.py
+++ b/__info__.py
@@ -22,7 +22,7 @@
 
 """Information variable used by modules on this package."""
 
-__version__ = '1.1.0'
+__version__ = '1.2.0'
 __author__ = 'Matteo Guadrini'
 __email__ = 'matteo.guadrini@hotmail.it'
 __homepage__ = 'https://github.com/MatteoGuadrini/mkpl'
diff --git a/mkpl.py b/mkpl.py
index 66c1058..f75b5fb 100644
--- a/mkpl.py
+++ b/mkpl.py
@@ -24,7 +24,7 @@
 
 # region imports
 import argparse
-from re import findall
+from re import findall, sub
 from filecmp import cmp
 from os.path import join
 from pathlib import Path
@@ -35,7 +35,7 @@
 # region globals
 FILE_FORMAT = {'mp1', 'mp2', 'mp3', 'mp4', 'aac', 'ogg', 'wav', 'wma',
                'avi', 'xvid', 'divx', 'mpeg', 'mpg', 'mov', 'wmv'}
-__version__ = '1.1.0'
+__version__ = '1.2.0'
 
 
 # endregion
@@ -72,12 +72,16 @@ def get_args():
     parser.add_argument("-s", "--shuffle", help="Casual order", action='store_true')
     parser.add_argument("-u", "--unique", help="The same files are not placed in the playlist", action='store_true')
     parser.add_argument("-c", "--append", help="Continue playlist instead of override it", action='store_true')
+    parser.add_argument("-w", "--windows", help="Windows style folder separator", action='store_true')
 
     args = parser.parse_args()
 
     # Check extension of playlist file
     if not args.playlist.endswith('.m3u'):
-        args.playlist += '.m3u'
+        if args.encoding == 'UNICODE':
+            args.playlist += '.m3u8'
+        else:
+            args.playlist += '.m3u'
 
     # Open playlist file
     mode = 'at' if args.append else 'wt'
@@ -160,7 +164,9 @@ def main():
                 if findall(args.pattern, file):
                     # Check file size
                     if size >= args.size:
-                        multimedia_files.append(file)
+                        multimedia_files.append(
+                            sub('/', r"\\", file) if args.windows else file
+                        )
 
     # Build a playlist
     if multimedia_files: