diff --git a/hosts/alice/borg.nix b/hosts/alice/borg.nix
index 625d4f9..c0ddb9a 100644
--- a/hosts/alice/borg.nix
+++ b/hosts/alice/borg.nix
@@ -20,7 +20,7 @@ in {
       };
       startAt = "daily";
       persistentTimer = true;
-      environment.BORG_RSH = "ssh -i /home/buffet/.ssh/id_borg";
+      environment.BORG_RSH = "ssh -i /home/buffet/.ssh/id_borg_ed25519";
       extraArgs = "--remote-path borg1";
       prune.keep = {
         within = "1d";
diff --git a/hosts/ami/borg.nix b/hosts/ami/borg.nix
index 43a48c3..11da7f5 100644
--- a/hosts/ami/borg.nix
+++ b/hosts/ami/borg.nix
@@ -18,7 +18,7 @@ in {
       };
       startAt = "daily";
       persistentTimer = true;
-      environment.BORG_RSH = "ssh -i /root/.ssh/id_borg";
+      environment.BORG_RSH = "ssh -i /root/.ssh/id_borg_ed25519";
       extraArgs = "--remote-path borg1";
       prune.keep = {
         within = "1d";