diff --git a/hardware-configuration.nix b/hardware-configuration.nix
index 19d68e6..f987867 100644
--- a/hardware-configuration.nix
+++ b/hardware-configuration.nix
@@ -17,6 +17,11 @@
         kernelModules = [ "kvm-intel" ];
         consoleLogLevel = 0;
 
+        kernel.sysctl = {
+            # for ryujinx
+            "vm.max_map_count" = 524288;
+        };
+
         initrd = {
             #verbose = false;
             availableKernelModules = [