diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index effaa716d..d513b2935 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -5338,7 +5338,7 @@ prometheus_node_exporter_gid: "{{ matrix_user_gid }}"
 
 prometheus_node_exporter_hostname: "{{ matrix_server_fqn_matrix }}"
 
-prometheus_node_exporter_docker_image_registry_prefix_upstream: "{{ matrix_container_global_registry_prefix_override if matrix_container_global_registry_prefix_override else prometheus_node_exporter_docker_image_registry_prefix_upstream_default }}"
+prometheus_node_exporter_container_image_registry_prefix_upstream: "{{ matrix_container_global_registry_prefix_override if matrix_container_global_registry_prefix_override else prometheus_node_exporter_container_image_registry_prefix_upstream_default }}"
 
 prometheus_node_exporter_container_network: "{{ matrix_monitoring_container_network }}"