diff --git a/nixos-module.nix b/nixos-module.nix
index 1f5e18f..fdb6b04 100644
--- a/nixos-module.nix
+++ b/nixos-module.nix
@@ -26,6 +26,8 @@ let
     builtins.toJSON gathererSettings
   );
 
+  limitNOFILE = 1000000;
+
 in
 {
   options.services.caveman = with lib; {
@@ -68,6 +70,10 @@ in
   };
 
   config = {
+    systemd.extraConfig = ''
+      DefaultLimitNOFILE=${toString limitNOFILE}
+    '';
+
     services.redis.servers.caveman = lib.mkIf cfg.hunter.enable {
       enable = true;
       port = cfg.redis.port;
@@ -100,7 +106,7 @@ in
         RestrictRealtime = true;
         LockPersonality = true;
         MemoryDenyWriteExecute = true;
-        LimitNOFile = 100000;
+        LimitNOFile = limitNOFILE;
       };
     };
 
@@ -126,7 +132,7 @@ in
         RestrictRealtime = true;
         LockPersonality = true;
         MemoryDenyWriteExecute = true;
-        LimitNOFile = 100000;
+        LimitNOFile = limitNOFILE;
         WorkingDirectory = "${pkgs.caveman-gatherer}/share/caveman/gatherer";
       };
     };