diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
index a9aa7e506..20dec216c 100644
--- a/youtube_dl/extractor/__init__.py
+++ b/youtube_dl/extractor/__init__.py
@@ -64,84 +64,18 @@ from .youporn import YouPornIE
 from .youtube import YoutubeIE, YoutubePlaylistIE, YoutubeSearchIE, YoutubeUserIE, YoutubeChannelIE
 from .zdf import ZDFIE
 
+_ALL_CLASSES = [
+    klass
+    for name, klass in globals().items()
+    if name.endswith('IE') and name != 'GenericIE'
+]
+_ALL_CLASSES.append(GenericIE)
 
 def gen_extractors():
     """ Return a list of an instance of every supported extractor.
     The order does matter; the first extractor matched is the one handling the URL.
     """
-    return [
-        YoutubePlaylistIE(),
-        YoutubeChannelIE(),
-        YoutubeUserIE(),
-        YoutubeSearchIE(),
-        YoutubeIE(),
-        MetacafeIE(),
-        DailymotionIE(),
-        GoogleSearchIE(),
-        PhotobucketIE(),
-        YahooIE(),
-        YahooSearchIE(),
-        DepositFilesIE(),
-        FacebookIE(),
-        BlipTVIE(),
-        BlipTVUserIE(),
-        VimeoIE(),
-        MyVideoIE(),
-        ComedyCentralIE(),
-        EscapistIE(),
-        CollegeHumorIE(),
-        XVideosIE(),
-        SoundcloudSetIE(),
-        SoundcloudIE(),
-        InfoQIE(),
-        MixcloudIE(),
-        StanfordOpenClassroomIE(),
-        MTVIE(),
-        YoukuIE(),
-        XNXXIE(),
-        YouJizzIE(),
-        PornotubeIE(),
-        YouPornIE(),
-        GooglePlusIE(),
-        ArteTvIE(),
-        NBAIE(),
-        WorldStarHipHopIE(),
-        JustinTVIE(),
-        FunnyOrDieIE(),
-        SteamIE(),
-        UstreamIE(),
-        RBMARadioIE(),
-        EightTracksIE(),
-        KeekIE(),
-        TEDIE(),
-        MySpassIE(),
-        SpiegelIE(),
-        LiveLeakIE(),
-        ARDIE(),
-        ZDFIE(),
-        TumblrIE(),
-        BandcampIE(),
-        RedTubeIE(),
-        InaIE(),
-        HowcastIE(),
-        VineIE(),
-        FlickrIE(),
-        TeamcocoIE(),
-        XHamsterIE(),
-        HypemIE(),
-        Vbox7IE(),
-        GametrailersIE(),
-        StatigramIE(),
-        BreakIE(),
-        VevoIE(),
-        JukeboxIE(),
-        TudouIE(),
-        CSpanIE(),
-        WimpIE(),
-        HotNewHipHopIE(),
-        AUEngineIE(),
-        GenericIE()
-    ]
+    return [klass() for klass in _ALL_CLASSES]
 
 def get_info_extractor(ie_name):
     """Returns the info extractor class with the given ie_name"""