diff --git a/modules/services/wifibackup/default.nix b/modules/services/wifibackup/default.nix
index 508857e..7ca5fa8 100644
--- a/modules/services/wifibackup/default.nix
+++ b/modules/services/wifibackup/default.nix
@@ -56,6 +56,7 @@ in {
           User = "root";
           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" \