diff --git a/modules/nixos/services/tailscale.nix b/modules/nixos/services/tailscale.nix
index ca26029..ffd19b5 100644
--- a/modules/nixos/services/tailscale.nix
+++ b/modules/nixos/services/tailscale.nix
@@ -15,5 +15,18 @@
       networking.firewall.allowedUDPPorts = [ config.services.tailscale.port ];
       environment.systemPackages = [ pkgs.tailscale ];
     })
+
+    # tailscale and impermanence
+    (lib.mkIf
+      (
+        config.osbmModules.services.tailscale.enable
+        && config.osbmModules.hardware.disko.zfs.root.impermanenceRoot
+      )
+      {
+        environment.persistence."/persist".directories = [
+          "/var/lib/tailscale"
+        ];
+      }
+    )
   ];
 }