diff --git a/nixos/modules/services/cluster/kubernetes/scheduler.nix b/nixos/modules/services/cluster/kubernetes/scheduler.nix
index 6fb90469c706..05205a529f8d 100644
--- a/nixos/modules/services/cluster/kubernetes/scheduler.nix
+++ b/nixos/modules/services/cluster/kubernetes/scheduler.nix
@@ -1,7 +1,4 @@
 { config, lib, options, pkgs, ... }:
-
-with lib;
-
 let
   top = config.services.kubernetes;
   otop = options.services.kubernetes;
@@ -11,42 +8,42 @@ in
   ###### interface
   options.services.kubernetes.scheduler = with lib.types; {
 
-    address = mkOption {
+    address = lib.mkOption {
       description = "Kubernetes scheduler listening address.";
       default = "127.0.0.1";
       type = str;
     };
 
-    enable = mkEnableOption "Kubernetes scheduler";
+    enable = lib.mkEnableOption "Kubernetes scheduler";
 
-    extraOpts = mkOption {
+    extraOpts = lib.mkOption {
       description = "Kubernetes scheduler extra command line options.";
       default = "";
       type = separatedString " ";
     };
 
-    featureGates = mkOption {
+    featureGates = lib.mkOption {
       description = "Attribute set of feature gates.";
       default = top.featureGates;
-      defaultText = literalExpression "config.${otop.featureGates}";
+      defaultText = lib.literalExpression "config.${otop.featureGates}";
       type = attrsOf bool;
     };
 
     kubeconfig = top.lib.mkKubeConfigOptions "Kubernetes scheduler";
 
-    leaderElect = mkOption {
+    leaderElect = lib.mkOption {
       description = "Whether to start leader election before executing main loop.";
       type = bool;
       default = true;
     };
 
-    port = mkOption {
+    port = lib.mkOption {
       description = "Kubernetes scheduler listening port.";
       default = 10251;
       type = port;
     };
 
-    verbosity = mkOption {
+    verbosity = lib.mkOption {
       description = ''
         Optional glog verbosity level for logging statements. See
         <https://github.com/kubernetes/community/blob/master/contributors/devel/logging.md>
@@ -58,7 +55,7 @@ in
   };
 
   ###### implementation
-  config = mkIf cfg.enable {
+  config = lib.mkIf cfg.enable {
     systemd.services.kube-scheduler = {
       description = "Kubernetes Scheduler Service";
       wantedBy = [ "kubernetes.target" ];
@@ -67,12 +64,12 @@ in
         Slice = "kubernetes.slice";
         ExecStart = ''${top.package}/bin/kube-scheduler \
           --bind-address=${cfg.address} \
-          ${optionalString (cfg.featureGates != {})
-            "--feature-gates=${concatStringsSep "," (builtins.attrValues (mapAttrs (n: v: "${n}=${trivial.boolToString v}") cfg.featureGates))}"} \
+          ${lib.optionalString (cfg.featureGates != {})
+            "--feature-gates=${lib.concatStringsSep "," (builtins.attrValues (lib.mapAttrs (n: v: "${n}=${lib.trivial.boolToString v}") cfg.featureGates))}"} \
           --kubeconfig=${top.lib.mkKubeConfig "kube-scheduler" cfg.kubeconfig} \
-          --leader-elect=${boolToString cfg.leaderElect} \
+          --leader-elect=${lib.boolToString cfg.leaderElect} \
           --secure-port=${toString cfg.port} \
-          ${optionalString (cfg.verbosity != null) "--v=${toString cfg.verbosity}"} \
+          ${lib.optionalString (cfg.verbosity != null) "--v=${toString cfg.verbosity}"} \
           ${cfg.extraOpts}
         '';
         WorkingDirectory = top.dataDir;
@@ -94,7 +91,7 @@ in
       };
     };
 
-    services.kubernetes.scheduler.kubeconfig.server = mkDefault top.apiserverAddress;
+    services.kubernetes.scheduler.kubeconfig.server = lib.mkDefault top.apiserverAddress;
   };
 
   meta.buildDocsInSandbox = false;