diff --git a/pyconfr-to-mastodon.py b/pyconfr-to-mastodon.py
index c1a85fd..995803e 100644
--- a/pyconfr-to-mastodon.py
+++ b/pyconfr-to-mastodon.py
@@ -164,7 +164,7 @@ def live_toot(talks, mastodon: Mastodon, ahead_days=0):
             ),
             salle="Salle " + talk.room.split("/")[0],
         )
-        media = mastodon.media_post("rend.png")
+        media = mastodon.media_post(png_name)
         mastodon.status_post(toot_for(talk, ahead_days), media_ids=[media])