diff --git a/youtube_dl/extractor/hellporno.py b/youtube_dl/extractor/hellporno.py
index 7a1c75b65..abe18696a 100644
--- a/youtube_dl/extractor/hellporno.py
+++ b/youtube_dl/extractor/hellporno.py
@@ -10,8 +10,8 @@ from ..utils import (
 
 
 class HellPornoIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?hellporno\.com/videos/(?P<id>[^/]+)'
-    _TEST = {
+    _VALID_URL = r'https?://(?:www\.)?hellporno\.((com/videos)|(net/v))/(?P<id>[^/]+)'
+    _TESTS = [{
         'url': 'http://hellporno.com/videos/dixie-is-posing-with-naked-ass-very-erotic/',
         'md5': '1fee339c610d2049699ef2aa699439f1',
         'info_dict': {
@@ -22,7 +22,18 @@ class HellPornoIE(InfoExtractor):
             'thumbnail': 're:https?://.*\.jpg$',
             'age_limit': 18,
         }
-    }
+    }, {
+        'url' : 'http://hellporno.net/v/186486/',
+        'md5': '65adb331709d68d01067527d5547ae88',
+        'info_dict': {
+            'id': '186486',
+            'display_id': '186486',
+            'ext': 'mp4',
+            'title': 'Tattooed brunette tries anal sex with a big cock',
+            'thumbnail': 're:https?://.*\.jpg/$',
+            'age_limit': 18,
+        }        
+    }]
 
     def _real_extract(self, url):
         display_id = self._match_id(url)
@@ -38,7 +49,9 @@ class HellPornoIE(InfoExtractor):
 
         video_id = flashvars.get('video_id')
         thumbnail = flashvars.get('preview_url')
-        ext = flashvars.get('postfix', '.mp4')[1:]
+        ext = flashvars.get('postfix')
+        if ext is not None:
+            ext = ext[ext.rfind(".")+1:]
 
         formats = []
         for video_url_key in ['video_url', 'video_alt_url']: