diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index 0754a0438..29b1064f4 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -4565,6 +4565,8 @@ prometheus_base_path: "{{ matrix_base_data_path }}/prometheus"
 prometheus_uid: "{{ matrix_user_uid }}"
 prometheus_gid: "{{ matrix_user_gid }}"
 
+prometheus_container_network: "{{ matrix_monitoring_container_network }}"
+
 prometheus_container_additional_networks: |
   {{
     (