diff --git a/dailyreleases/generation.py b/dailyreleases/generation.py
index 5663a4e..46452bc 100644
--- a/dailyreleases/generation.py
+++ b/dailyreleases/generation.py
@@ -147,7 +147,7 @@ def generate(post=False, pm_recipients=None) -> None:
 def load_already_posted() -> Set[str]:
     try:
         with DATA_DIR.joinpath("already_posted").open() as file:
-            return {line.rstrip() for line in file.readlines()}
+            return {line.rstrip() for line in file}
     except FileNotFoundError:
         return set()
 
@@ -155,4 +155,4 @@ def load_already_posted() -> Set[str]:
 def save_already_posted(already_posted) -> None:
     logger.info("Saving already posted to file")
     with DATA_DIR.joinpath("already_posted").open("w") as file:
-        file.writelines(already_posted)
+        file.writelines(f"{dirname}\n" for dirname in already_posted)