diff --git a/modules/nixos/prometheus/default.nix b/modules/nixos/prometheus/default.nix
index 070e3d2..a560737 100644
--- a/modules/nixos/prometheus/default.nix
+++ b/modules/nixos/prometheus/default.nix
@@ -96,11 +96,11 @@ in
             node = {
               enable = true;
               enabledCollectors = [
-                "diskstats"
                 "loadavg"
                 "time"
                 "systemd"
               ];
+              listenAddress = "127.0.0.1";
               port = 9100;
             };
           };
diff --git a/modules/nixos/prometheus/miniflux.nix b/modules/nixos/prometheus/miniflux.nix
index 2a64f47..5339de3 100644
--- a/modules/nixos/prometheus/miniflux.nix
+++ b/modules/nixos/prometheus/miniflux.nix
@@ -4,7 +4,7 @@ let
 in
 {
   config = lib.mkIf (cfg.enable && cfg.exporters.miniflux.enable) {
-    systemd.services.miniflux.environment.METRICS_COLLECTOR = 1;
+    systemd.services.miniflux.environment.METRICS_COLLECTOR = "1";
     services.prometheus.scrapeConfigs = [
       {
         job_name = "miniflux";