diff --git a/youtube_dl_gui/YoutubeDLGUI.py b/youtube_dl_gui/YoutubeDLGUI.py
index 2d0734f..10dc965 100644
--- a/youtube_dl_gui/YoutubeDLGUI.py
+++ b/youtube_dl_gui/YoutubeDLGUI.py
@@ -81,7 +81,8 @@ class MainFrame(wx.Frame):
         self.init_gui()
 
         # set app icon
-        self.SetIcon(wx.Icon(ICON, wx.BITMAP_TYPE_PNG))
+        if ICON is not None:
+            self.SetIcon(wx.Icon(ICON, wx.BITMAP_TYPE_PNG))
 
         # set publisher for update thread
         Publisher.subscribe(self.update_handler, "update")