diff --git a/app.py b/app.py
index 8eb14b4..2d9d9e2 100644
--- a/app.py
+++ b/app.py
@@ -366,7 +366,11 @@ def proxy(video_id):
     og_tags_str = "\n".join(str(tag) for tag in og_tags if tag.get("property") not in ["og:site_name"])
     og_tags_str += '\n<meta content="ニコニコ動画" property="og:site_name"/>'
     og_tags_str += f'\n<link rel="alternate" href="{get_oembed_url(params)}" type="application/json+oembed" title="{video_id}"/>'
-    if 'twitterbot' in request_user_agent:
+
+    # Discord seems to ignore video URLs when Twitter meta tags are present,
+    # so in addition to including these when the User Agent is a Twitter bot,
+    # we also include them when the video is too long to download in order to remove the play button.
+    if 'twitterbot' in request_user_agent or not download_allowed:
         logger.info(f"{video_id}: Twitterbot detected - adding Twitter tags")
         og_tags_str += f'\n<meta content="{thumbnail_url}" property="twitter:image"/>'
         og_tags_str += '\n<meta content="summary_large_image" property="twitter:card"/>'