diff --git a/pinaxcon/templatetags/pyconau2017_tags.py b/pinaxcon/templatetags/pyconau2017_tags.py
index 1b78f3cf..894b077f 100644
--- a/pinaxcon/templatetags/pyconau2017_tags.py
+++ b/pinaxcon/templatetags/pyconau2017_tags.py
@@ -96,6 +96,5 @@ def trackname(room, day):
 def sponsor_thumbnail(sponsor_logo):
     if sponsor_logo is not None:
         if sponsor_logo.upload:
-            logo_file = os.path.join(settings.MEDIA_URL, str(sponsor_logo.upload))
-            return logo_file
+            return sponsor_logo.upload.url
     return ""