diff --git a/run b/run
index 67dcbf6..72456c1 100755
--- a/run
+++ b/run
@@ -1,13 +1,14 @@
 #!/usr/bin/env python3
 
 import gzip
+import json
 import os
 import pickle
 import re
 import subprocess
 from base64 import b64decode
+from hashlib import sha1
 from urllib.parse import urlparse, unquote
-import json
 
 import requests
 from bs4 import BeautifulSoup
@@ -25,8 +26,13 @@ def decode_cookiejar(data):
 # with open("cookies.txt", "w") as f:
 #     f.write(encode_cookiejar(cj))
 
+done = set()
+
 secret = json.loads(os.environ["PROJECT_SECRET"])
 
+with open("tmp.conf", "w") as f:
+    f.write(secret["rclone"])
+
 cj = decode_cookiejar(secret["cookies"])
 
 session = requests.Session()
@@ -55,10 +61,10 @@ def _download(link, i):
     with gzip.open(filename, "wb") as f:
         f.write(r.content)
 
-    with open("tmp.conf", "w") as f:
-        f.write(secret["rclone"])
-
-    subprocess.run(["rclone", "copy", "--config", "tmp.conf" ,filename, "staging:mobilism/"])
+    sha1sum = sha1(r.content).hexdigest()
+    if sha1sum in done:
+        subprocess.run(["rclone", "copy", "--config", "tmp.conf", filename, "staging:mobilism/"])
+        done.add(sha1sum)
 
 
 def do_premium_download(link, i):