diff --git a/youtube_dl/extractor/abcnews.py b/youtube_dl/extractor/abcnews.py
index 8a5ae42f02..01247feadc 100644
--- a/youtube_dl/extractor/abcnews.py
+++ b/youtube_dl/extractor/abcnews.py
@@ -12,7 +12,7 @@ from ..compat import compat_urlparse
 
 class AbcNewsVideoIE(AMPIE):
     IE_NAME = 'abcnews:video'
-    _VALID_URL = 'https?://abcnews.go.com/[^/]+/video/(?P<display_id>[0-9a-z-]+)-(?P<id>\d+)'
+    _VALID_URL = r'https?://abcnews\.go\.com/[^/]+/video/(?P<display_id>[0-9a-z-]+)-(?P<id>\d+)'
 
     _TESTS = [{
         'url': 'http://abcnews.go.com/ThisWeek/video/week-exclusive-irans-foreign-minister-zarif-20411932',
diff --git a/youtube_dl/extractor/karaoketv.py b/youtube_dl/extractor/karaoketv.py
index 2f37786df7..bad46005bd 100644
--- a/youtube_dl/extractor/karaoketv.py
+++ b/youtube_dl/extractor/karaoketv.py
@@ -5,7 +5,7 @@ from .common import InfoExtractor
 
 
 class KaraoketvIE(InfoExtractor):
-    _VALID_URL = r'https?://www.karaoketv.co.il/[^/]+/(?P<id>\d+)'
+    _VALID_URL = r'https?://www\.karaoketv\.co\.il/[^/]+/(?P<id>\d+)'
     _TEST = {
         'url': 'http://www.karaoketv.co.il/%D7%A9%D7%99%D7%A8%D7%99_%D7%A7%D7%A8%D7%99%D7%95%D7%A7%D7%99/58356/%D7%90%D7%99%D7%96%D7%95%D7%9F',
         'info_dict': {