diff --git a/docs/installation/external_dependencies.rst b/docs/installation/external_dependencies.rst
index fa0908545611d67b4321bd19dbda01bb060f0dff..6641bef000081bbc639dd4113815c7e6d1814de2 100644
--- a/docs/installation/external_dependencies.rst
+++ b/docs/installation/external_dependencies.rst
@@ -43,6 +43,15 @@ you should now be able to open a postgresql shell:
 
     sudo -u funkwhale -H psql
 
+Unless you give a superuser access to the database user, you should also
+enable some extensions on your database server, as those are required
+for funkwhale to work properly:
+
+.. code-block:: shell
+
+    sudo -u postgres psql -c 'CREATE EXTENSION "unaccent";''
+
+
 Cache setup (Redis)
 -------------------