diff --git a/.env.example b/.env.example
index 5dbf49c..e93598f 100644
--- a/.env.example
+++ b/.env.example
@@ -4,10 +4,11 @@ REDDIT_AUTH_TOKEN=""
 REDDIT_REFRESH_TOKEN=""
 REDDIT_CLIENT_ID=""
 REDDIT_CLIENT_SECRET=""
+REDDIT_SUBREDDIT="ich_iel"
 MASTODON_URL=""
-MASTODON_EMAIL=""
-MASTODON_PASSWORD=""
+MASTODON_EMAIL="mail@example.com"
+MASTODON_PASSWORD="password"
 MASTODON_USER_ID=""
-MASTODON_APP_NAME=""
+MASTODON_APP_NAME="Reddit Mastodon Crossposter"
 MASTODON_USER_SECRET="usercred.secret"
 MASTODON_CLIENT_SECRET="clientcred.secret"
diff --git a/README.md b/README.md
index 04a3ad4..5253b50 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 
 3. Initialize Mastodon.py with e.g. `masto.py` (please refer to the [Mastodon.py docs](https://mastodonpy.readthedocs.io)).
 
-4. Set all `.env` variables if there are any remaining.
+4. Set all `.env` variables if there are any remaining. (The code does not check for missing environment variables and assumes that everything is set correctly.)
 
 5. Create a script `post_toots.sh` and make it executable `chmod +x post_toots.sh`:
 
diff --git a/script.py b/script.py
index ba7d157..450b6a2 100644
--- a/script.py
+++ b/script.py
@@ -26,7 +26,7 @@ mastodon = Mastodon(
 # get recent posts to check for duplicates
 last_posts = mastodon.account_statuses(getenv("MASTODON_USER_ID"), limit=15)
 
-for submission in reddit.subreddit("ich_iel").top(time_filter="day", limit=10):
+for submission in reddit.subreddit(str(getenv("REDDIT_SUBREDDIT"))).top(time_filter="day", limit=10):
     # skip post if it is a stickied post
     if (submission.stickied):
         continue