diff --git a/main.py b/main.py
index 4aedb01..c7b5f8b 100755
--- a/main.py
+++ b/main.py
@@ -69,7 +69,7 @@ if "secret" not in cfg:
 	print("Open this URL and authenticate to give mstdn-ebooks access to your bot's account: {}".format(client.auth_request_url(scopes=scopes)))
 	cfg['secret'] = client.log_in(code=input("Secret: "), scopes=scopes)
 
-json.dump(cfg, open(args.cfg, "w+"))
+open(args.cfg, "w").write(re.sub(",", ",\n", json.dumps(cfg)))
 
 
 def extract_toot(toot):