diff --git a/plinth/modules/transmission/data/etc/apache2/conf-available/transmission-plinth.conf b/plinth/modules/transmission/data/etc/apache2/conf-available/transmission-plinth.conf
index 21558b3da..31dfacb53 100644
--- a/plinth/modules/transmission/data/etc/apache2/conf-available/transmission-plinth.conf
+++ b/plinth/modules/transmission/data/etc/apache2/conf-available/transmission-plinth.conf
@@ -16,4 +16,15 @@
     ## redirect URLs, set cookies, set absolute URLs (if any)
     ## properly.
     RequestHeader    set X-Forwarded-Proto 'https' env=HTTPS
+
+    # Make redirects to avoid 409 Conflict errors. See: #2219. Upstream issue:
+    # https://github.com/transmission/transmission/pull/857 . Drop this
+    # workaround with Transmission >= 4.0.
+    <IfModule mod_rewrite.c>
+        RewriteEngine On
+        RewriteCond %{REQUEST_URI} ^/transmission/$
+        RewriteRule .* /transmission/web/ [R=302,L]
+        RewriteCond %{REQUEST_URI} ^/transmission/web$
+        RewriteRule .* /transmission/web/ [R=302,L]
+    </IfModule>
 </Location>