diff --git a/applications/prometheus.nix b/applications/prometheus.nix
index a431e1a..67d1ca0 100644
--- a/applications/prometheus.nix
+++ b/applications/prometheus.nix
@@ -60,7 +60,7 @@ in {
             job_name = "node_exporter";
             static_configs = [
               {
-                targets = map (hostname: "${hostname}:${collecter_port}") lib.attrsets.mapAttrsToList (server: server.deployment.hostname) nodes ++ cfg.other_nodes;
+                targets = (map (hostname: "${hostname}:${collecter_port}") (lib.attrsets.mapAttrsToList (server: server.deployment.hostname)) nodes) ++ cfg.other_nodes;
               }
             ];
           }