diff --git a/group_vars/all/matrix.yml b/group_vars/all/matrix.yml
index 64128bd..902fac2 100644
--- a/group_vars/all/matrix.yml
+++ b/group_vars/all/matrix.yml
@@ -1,6 +1,7 @@
 ---
 matrix_server_name: deso-palaiseau.fr
 matrix_local_server_name: synapse.pp.intra
+matrix_enable_registration: true
 synapse_postgre_user_pwd: "{{ vault_synapse_postgre_user_pwd }}"
 matrix_max_upload_size: 50M
 matrix_registration_shared_secret: "{{ vault_matrix_registration_shared_secret }}"
diff --git a/roles/synapse/templates/homeserver.yaml b/roles/synapse/templates/homeserver.yaml
index d212475..a10b12a 100644
--- a/roles/synapse/templates/homeserver.yaml
+++ b/roles/synapse/templates/homeserver.yaml
@@ -775,7 +775,7 @@ url_preview_accept_language:
 
 # Enable registration for new users.
 #
-enable_registration: false
+enable_registration: {{ matrix_enable_registration }}
 
 # Time that a user's session remains valid for, after they log in.
 #