diff --git a/data/etc/apache2/sites-available/plinth-ssl.conf b/data/etc/apache2/sites-available/plinth-ssl.conf
index 8fe2993de..3638d7c5c 100644
--- a/data/etc/apache2/sites-available/plinth-ssl.conf
+++ b/data/etc/apache2/sites-available/plinth-ssl.conf
@@ -9,7 +9,6 @@
     Header always set Strict-Transport-Security "max-age=31536000"
 
     ## Shared options.
-    ProxyPreserveHost on
     DocumentRoot /usr/share/plinth
 
     ## Use this rule to hang plinth off of plinth.(servername)