diff --git a/youtube_dl/extractor/collegerama.py b/youtube_dl/extractor/collegerama.py
index 18c7347668..6a41db87cb 100644
--- a/youtube_dl/extractor/collegerama.py
+++ b/youtube_dl/extractor/collegerama.py
@@ -21,7 +21,7 @@ class CollegeRamaIE(InfoExtractor):
                 'ext': 'mp4',
                 'title': 'Een nieuwe wereld: waarden, bewustzijn en techniek van de mensheid 2.0.',
                 'description': '',
-                'thumbnail': r're:^https?://.*\.jpg$',
+                'thumbnail': r're:^https?://.*\.jpg(?:\?.*?)?$',
                 'duration': 7713.088,
                 'timestamp': 1413309600,
                 'upload_date': '20141014',
@@ -35,6 +35,7 @@ class CollegeRamaIE(InfoExtractor):
                 'ext': 'wmv',
                 'title': '64ste Vakantiecursus: Afvalwater',
                 'description': 'md5:7fd774865cc69d972f542b157c328305',
+                'thumbnail': r're:^https?://.*\.jpg(?:\?.*?)?$',
                 'duration': 10853,
                 'timestamp': 1326446400,
                 'upload_date': '20120113',