diff --git a/nixos/hosts/framework-server/wireguard.nix b/nixos/hosts/framework-server/wireguard.nix
index 5ac7732c..d9794075 100644
--- a/nixos/hosts/framework-server/wireguard.nix
+++ b/nixos/hosts/framework-server/wireguard.nix
@@ -4,6 +4,7 @@
   networking.extraHosts = ''
     10.100.0.1 osaka-linode-01
     10.100.0.2 framework-server
+    10.100.0.3 backups-rpi4
   '';
 
   networking.firewall.interfaces.wireguard0.allowedTCPPorts = [ 22 ];
diff --git a/nixos/hosts/osaka-linode-01/wireguard.nix b/nixos/hosts/osaka-linode-01/wireguard.nix
index ba0475b9..63592528 100644
--- a/nixos/hosts/osaka-linode-01/wireguard.nix
+++ b/nixos/hosts/osaka-linode-01/wireguard.nix
@@ -50,7 +50,7 @@
             allowedIPs = [ "10.100.0.2/32" ];
           }
           { # backups-rpi4
-            publicKey = "5LUo2TJr0gsIGCTaeQJDQQqr1+ossEKehKrv2GC1OBw=";
+            publicKey = "cqocpMyY8Z0Jl0hoAdghn3dR3VhkkOYyeSwW6UKk9Fs=";
             presharedKeyFile = "/run/secrets/preshared_key";
             persistentKeepalive = 5;
             allowedIPs = [ "10.100.0.3/32" ];