diff --git a/src/newsreader/news/collection/forms.py b/src/newsreader/news/collection/forms.py
index 1d9b996..a8aac52 100644
--- a/src/newsreader/news/collection/forms.py
+++ b/src/newsreader/news/collection/forms.py
@@ -13,7 +13,8 @@ def get_reddit_help_text():
     return mark_safe(
         "Only subreddits are supported. For example: "
         "<a className='link' target='_blank' rel='noopener noreferrer'"
-        " href='https://www.reddit.com/r/aww'>https://www.reddit.com/r/aww</a>"
+        " href='https://reddit.com/r/aww'>https://www.reddit.com/r/aww</a>."
+        " Note that subreddit urls should NOT include 'www' because Reddit is picky."
     )