diff --git a/plinth/modules/matrixsynapse/data/etc/apache2/conf-available/matrix-synapse-plinth.conf b/plinth/modules/matrixsynapse/data/etc/apache2/conf-available/matrix-synapse-plinth.conf
index 64217ece9..292ef44ce 100644
--- a/plinth/modules/matrixsynapse/data/etc/apache2/conf-available/matrix-synapse-plinth.conf
+++ b/plinth/modules/matrixsynapse/data/etc/apache2/conf-available/matrix-synapse-plinth.conf
@@ -5,4 +5,8 @@
 ## 8448. Further, federation requires same TLS public key to be provided to
 ## Apache and Matrix Synapse server.
 ##
-ProxyPass /_matrix http://localhost:8008/_matrix
+<Location "/_matrix">
+    AllowEncodedSlashes NoDecode
+    ProxyPass /_matrix http://localhost:8008/_matrix nocanon
+    ProxyPassReverse /_matrix http://localhost:8008/_matrix
+</Location>