diff --git a/embed_video/backends.py b/embed_video/backends.py
index 0051f14..460db39 100644
--- a/embed_video/backends.py
+++ b/embed_video/backends.py
@@ -211,6 +211,7 @@ class YoutubeBackend(VideoBackend):
 
     re_code = re.compile(
         r'''youtu(\.?)be(\.com)?/  # match youtube's domains
+            (\#/)? # for mobile urls
             (embed/)?  # match the embed url syntax
             (v/)?
             (watch\?v=)?  # match the youtube page url
@@ -235,7 +236,8 @@ class YoutubeBackend(VideoBackend):
             try:
                 code = urlparse.parse_qs(parse_data.query)['v'][0]
             except KeyError:
-                raise UnknownIdException
+                raise UnknownIdException(
+                    'Cannot get ID from `{0}`'.format(self._url))
 
         return code
 
diff --git a/embed_video/tests/tests_backend.py b/embed_video/tests/tests_backend.py
index 333d06c..b617d45 100644
--- a/embed_video/tests/tests_backend.py
+++ b/embed_video/tests/tests_backend.py
@@ -56,6 +56,8 @@ class YoutubeBackendTestCase(BackendTestMixin, TestCase):
         ('https://www.youtube.com/watch?feature=player_embedded&v=2NpZbaAIXag', '2NpZbaAIXag'),
         ('https://www.youtube.com/watch?v=XPk521voaOE&feature=youtube_gdata_player', 'XPk521voaOE'),
         ('http://www.youtube.com/watch?v=6xu00J3-g2s&list=PLb5n6wzDlPakFKvJ69rJ9AJW24Aaaki2z', '6xu00J3-g2s'),
+        ('https://m.youtube.com/#/watch?v=IAooXLAPoBQ', 'IAooXLAPoBQ'),
+        ('https://m.youtube.com/watch?v=IAooXLAPoBQ', 'IAooXLAPoBQ')
     )
 
     instance = YoutubeBackend