diff --git a/youtube_dl_gui/optionsmanager.py b/youtube_dl_gui/optionsmanager.py
index da236ca..d2c1e04 100644
--- a/youtube_dl_gui/optionsmanager.py
+++ b/youtube_dl_gui/optionsmanager.py
@@ -204,6 +204,9 @@ class OptionsManager(object):
             selected_video_formats (list): List that contains the selected
                 video formats to display on the main window.
 
+            selected_audio_formats (list): List that contains the selected
+                audio formats to display on the main window.
+
         """
         #TODO Remove old options & check options validation
         self.options = {
@@ -252,7 +255,8 @@ class OptionsManager(object):
             'locale_name': 'en_US',
             'main_win_size': (710, 490),
             'opts_win_size': (640, 270),
-            'selected_video_formats': []
+            'selected_video_formats': [],
+            'selected_audio_formats': []
         }
 
     def load_from_file(self):