diff --git a/roles/matrix-bot-maubot/defaults/main.yml b/roles/matrix-bot-maubot/defaults/main.yml
index a003e65d..93732021 100644
--- a/roles/matrix-bot-maubot/defaults/main.yml
+++ b/roles/matrix-bot-maubot/defaults/main.yml
@@ -13,7 +13,7 @@ matrix_bot_maubot_base_path: "{{ matrix_base_data_path }}/maubot"
 matrix_bot_maubot_data_path: "{{ matrix_bot_maubot_base_path }}/data"
 matrix_bot_maubot_config_path: "{{ matrix_bot_maubot_base_path }}/config"
 
-matrix_bot_maubot_bot_server_public: "https://{{ matrix_server_fqn_matrix }}"
+matrix_bot_maubot_bot_server_public_url: "https://{{ matrix_server_fqn_matrix }}"
 matrix_bot_maubot_proxy_management_interface: false
 matrix_bot_maubot_expose_management_interface: true
 
diff --git a/roles/matrix-bot-maubot/templates/config/config.yaml.j2 b/roles/matrix-bot-maubot/templates/config/config.yaml.j2
index 3c844be3..559dc02c 100644
--- a/roles/matrix-bot-maubot/templates/config/config.yaml.j2
+++ b/roles/matrix-bot-maubot/templates/config/config.yaml.j2
@@ -34,7 +34,7 @@ server:
     hostname: 0.0.0.0
     port: 29316
     # Public base URL where the server is visible.
-    public_url: {{ matrix_bot_maubot_bot_server_public }}
+    public_url: {{ matrix_bot_maubot_bot_server_public_url }}
     # The base management API path.
     base_path: /_matrix/maubot/v1
     # The base path for the UI.