diff --git a/NixSupport/nixosModules/options.nix b/NixSupport/nixosModules/options.nix
index 2a1080dc6..952d571f6 100644
--- a/NixSupport/nixosModules/options.nix
+++ b/NixSupport/nixosModules/options.nix
@@ -87,7 +87,7 @@ with lib;
 
         rtsFlags = mkOption {
             type = types.str;
-            default = "-A96m -n4m -N --numa";
+            default = "-A96m -n4m -N";
         };
     };
 }