diff --git a/discord_rss_bot/templates/blacklist.html b/discord_rss_bot/templates/blacklist.html
index 7714de0..a5094c8 100644
--- a/discord_rss_bot/templates/blacklist.html
+++ b/discord_rss_bot/templates/blacklist.html
@@ -27,6 +27,9 @@
                 </div>
             </div>
 
+            <!-- Add a hidden feed_url field to the form -->
+            <input type="hidden" name="feed_url" value="{{ feed.url }}">
+
             <!-- Submit button -->
             <div class="d-md-flex">
                 <button class="btn btn-dark btn-sm">Update blacklist</button>
diff --git a/discord_rss_bot/templates/whitelist.html b/discord_rss_bot/templates/whitelist.html
index 3e91fc2..58b5b83 100644
--- a/discord_rss_bot/templates/whitelist.html
+++ b/discord_rss_bot/templates/whitelist.html
@@ -26,6 +26,9 @@
                 </div>
             </div>
 
+            <!-- Add a hidden feed_url field to the form -->
+            <input type="hidden" name="feed_url" value="{{ feed.url }}">
+
             <!-- Submit button -->
             <div class="d-md-flex">
                 <button class="btn btn-dark btn-sm">Update whitelist</button>