diff --git a/hosts/leon/default.nix b/hosts/leon/default.nix
index 7da24cdc..353f78be 100644
--- a/hosts/leon/default.nix
+++ b/hosts/leon/default.nix
@@ -109,6 +109,9 @@ in
       networkConfig.IPv6AcceptRA = true;
     };
   };
+  # enable IP routing
+  boot.kernel.sysctl."net.ipv4.conf.all.forwarding" = 1;
+  boot.kernel.sysctl."net.ipv4.conf.default.forwarding" = 1;
 
   security.sudo = {
     enable = true;