diff --git a/modules/services/wifibackup/default.nix b/modules/services/wifibackup/default.nix
index d2d62a0..d98ab41 100644
--- a/modules/services/wifibackup/default.nix
+++ b/modules/services/wifibackup/default.nix
@@ -3,29 +3,7 @@
   config,
   pkgs,
   ...
-}: let
-  mergeNmConnections = pkgs.writeShellApplication {
-    name = "merge-nmconnections";
-    text = ''
-      CURRENT1="$1"
-      CURRENT2="$2"
-      NEW="$3"
-      NEW1="$4"
-      NEW2="$5"
-
-      sed -i -E '/^(uuid|interface-name)=/d' "$CURRENT1"
-      sed -i -E '/^(uuid|interface-name)=/d' "$CURRENT2"
-
-      if cmp "$1" "$2"; then
-          mv "$CURRENT1" "$NEW"
-      else
-          mv "$CURRENT1" "$NEW1"
-          mv "$CURRENT2" "$NEW2"
-          exit 1
-      fi
-    '';
-  };
-in {
+}: {
   options.mj.services.wifibackup = with lib.types; {
     enable = lib.mkEnableOption "enable wifi code backups to M-Active";
     fromPath = lib.mkOption {
@@ -55,18 +33,19 @@ in {
           Type = "oneshot";
           User = "root";
           SuccessExitStatus = [0 1];
-          ExecStart = ''
-            ${pkgs.unison}/bin/unison \
-                -sshcmd ${pkgs.openssh}/bin/ssh \
-                -sshargs "-i /etc/ssh/ssh_host_ed25519_key" \
-                -batch \
-                -merge "Name *.nmconnection -> ${mergeNmConnections}/bin/merge-nmconnections CURRENT1 CURRENT2 NEW NEW1 NEW2" \
-                -backuploc local \
-                -backup "Name *" \
-                ${fromPath} \
-                ssh://${toUser}@localhost/${toPath}/
-          '';
         };
+        script = ''
+          sed -i -E '/^(uuid|interface-name)=/d' ${fromPath}/*.nmconnection
+
+          exec ${pkgs.unison}/bin/unison \
+              -sshcmd ${pkgs.openssh}/bin/ssh \
+              -sshargs "-i /etc/ssh/ssh_host_ed25519_key -o KnownHostsCommand=\"${pkgs.coreutils}/bin/cat /etc/ssh/ssh_host_ed25519_key.pub\"" \
+              -batch \
+              -backuploc local \
+              -backup "Name *" \
+              ${fromPath} \
+              ssh://${toUser}@localhost/${toPath}/
+        '';
       };
     };
 }