diff --git a/roles/matrix-nginx-proxy/defaults/main.yml b/roles/matrix-nginx-proxy/defaults/main.yml
index f9b3d7457..30a41cb81 100644
--- a/roles/matrix-nginx-proxy/defaults/main.yml
+++ b/roles/matrix-nginx-proxy/defaults/main.yml
@@ -62,6 +62,8 @@ matrix_nginx_proxy_proxy_matrix_federation_api_enabled: false
 matrix_nginx_proxy_proxy_matrix_federation_api_addr_with_container: "matrix-synapse:8048"
 matrix_nginx_proxy_proxy_matrix_federation_api_addr_sans_container: "localhost:8048"
 matrix_nginx_proxy_proxy_matrix_federation_api_client_max_body_size_mb: "{{ matrix_nginx_proxy_proxy_matrix_client_api_client_max_body_size_mb * 3 }}"
+matrix_nginx_proxy_proxy_matrix_federation_api_ssl_certificate: "{{ matrix_ssl_config_dir_path }}/live/{{ matrix_nginx_proxy_proxy_matrix_hostname }}/fullchain.pem"
+matrix_nginx_proxy_proxy_matrix_federation_api_ssl_certificate_key: "{{ matrix_ssl_config_dir_path }}/live/{{ matrix_nginx_proxy_proxy_matrix_hostname }}/privkey.pem"
 
 # The tmpfs at /tmp needs to be large enough to handle multiple concurrent file uploads.
 matrix_nginx_proxy_tmp_directory_size_mb: "{{ matrix_nginx_proxy_proxy_matrix_federation_api_client_max_body_size_mb * 50 }}"
diff --git a/roles/matrix-nginx-proxy/templates/nginx/conf.d/matrix-synapse.conf.j2 b/roles/matrix-nginx-proxy/templates/nginx/conf.d/matrix-synapse.conf.j2
index 4786911a6..c618f789c 100644
--- a/roles/matrix-nginx-proxy/templates/nginx/conf.d/matrix-synapse.conf.j2
+++ b/roles/matrix-nginx-proxy/templates/nginx/conf.d/matrix-synapse.conf.j2
@@ -164,8 +164,8 @@ server {
 	gzip on;
 	gzip_types text/plain application/json;
 
-	ssl_certificate {{ matrix_ssl_config_dir_path }}/live/{{ matrix_nginx_proxy_proxy_matrix_hostname }}/fullchain.pem;
-	ssl_certificate_key {{ matrix_ssl_config_dir_path }}/live/{{ matrix_nginx_proxy_proxy_matrix_hostname }}/privkey.pem;
+	ssl_certificate {{ matrix_nginx_proxy_proxy_matrix_federation_api_ssl_certificate }};
+	ssl_certificate_key {{ matrix_nginx_proxy_proxy_matrix_federation_api_ssl_certificate_key }};
 	ssl_protocols {{ matrix_nginx_proxy_ssl_protocols }};
 	ssl_prefer_server_ciphers on;
 	ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";