diff --git a/nix/deuxfleurs.nix b/nix/deuxfleurs.nix
index e82e3f6..7c97ebf 100644
--- a/nix/deuxfleurs.nix
+++ b/nix/deuxfleurs.nix
@@ -250,6 +250,7 @@ in
       interface = "wg0";
       gossipPort = 1666;
       gossipSecretFile = "/var/lib/wgautomesh/gossip_secret";
+      persistFile = "/var/lib/wgautomesh/state";
       upnpForwardPublicPort = 
         let
           us = filter ({ hostname, ...}: hostname == config.networking.hostName) cfg.cluster_nodes;
diff --git a/nix/wgautomesh.nix b/nix/wgautomesh.nix
index c09b874..0e0b7b3 100644
--- a/nix/wgautomesh.nix
+++ b/nix/wgautomesh.nix
@@ -1,7 +1,7 @@
 let
   src = builtins.fetchGit {
     url = "https://git.deuxfleurs.fr/lx/wgautomesh";
-    rev = "43eced6e9aa5935b4553251604207f72bf0214c1";
+    rev = "65e979de801daa5f6ef77ed875e6505aa902fd9c";
   };
   wgautomesh = (import src).packages.x86_64-linux.default;
 in
@@ -27,6 +27,10 @@ in
         type = types.nullOr types.str;
         description = "File containing the gossip secret encryption key";
       };
+      persistFile = mkOption {
+        type = types.nullOr types.str;
+        description = "Path where to persist known peer addresses";
+      };
       lanDiscovery = mkOption {
         type = types.bool;
         default = true;
@@ -78,6 +82,8 @@ in
       extraDefs = (if cfg.lanDiscovery then ["lan_discovery = true"] else [])
         ++ (if (cfg.gossipSecretFile != null)
           then [''gossip_secret_file = "${cfg.gossipSecretFile}"''] else [])
+        ++ (if (cfg.persistFile != null)
+          then [''persist_file = "${cfg.persistFile}"''] else [])
         ++ (if (cfg.upnpForwardPublicPort != null)
           then [''upnp_forward_external_port = ${toString cfg.upnpForwardPublicPort}''] else []);
       configfile = pkgs.writeText "wgautomesh.toml" ''