diff --git a/data/etc/apache2/sites-available/plinth-ssl.conf b/data/etc/apache2/sites-available/plinth-ssl.conf
index a7831936c..202e1bf1b 100644
--- a/data/etc/apache2/sites-available/plinth-ssl.conf
+++ b/data/etc/apache2/sites-available/plinth-ssl.conf
@@ -10,6 +10,9 @@
 ##
 <Location /plinth>
     RewriteEngine on
+    # Don't redirect for onion sites as it is not needed and leads to
+    # unnecessary warning.
+    RewriteCond %{HTTP_HOST} !^.*\.onion$ [NC]
     ReWriteCond %{HTTPS} !=on
     RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
 </Location>