diff --git a/roles/matrix-mxisd/defaults/main.yml b/roles/matrix-mxisd/defaults/main.yml
index 342497c8..286839da 100644
--- a/roles/matrix-mxisd/defaults/main.yml
+++ b/roles/matrix-mxisd/defaults/main.yml
@@ -13,13 +13,13 @@ matrix_mxisd_data_path: "{{ matrix_mxisd_base_path }}/data"
 # Controls whether the matrix-mxisd container exposes its HTTP port (tcp/8090 in the container).
 #
 # Takes an "<ip>:<port>" or "<port>" value (e.g. "127.0.0.1:8090"), or empty string to not expose.
-matrix_mxisd_container_http_host_bind_port: ""
+matrix_mxisd_container_http_host_bind_port: ''
 
 # A list of extra arguments to pass to the container
 matrix_mxisd_container_extra_arguments: []
 
 # List of systemd services that matrix-mxisd.service depends on
-matrix_mxisd_systemd_required_services_list: ["docker.service"]
+matrix_mxisd_systemd_required_services_list: ['docker.service']
 
 # List of systemd services that matrix-mxisd.service wants
 matrix_mxisd_systemd_wanted_services_list: []