diff --git a/scripts/Common/OS/backup.fish b/scripts/Common/OS/backup.fish
index d0760dfa..eb1c5d6e 100644
--- a/scripts/Common/OS/backup.fish
+++ b/scripts/Common/OS/backup.fish
@@ -19,6 +19,7 @@ function backupAction -V dir
             read -xP "Please specify the host name of the SSH server: " VALHALLA_BACKUP_SERVER
             read -xP "Please specify the port of the SSH server (default 22): " VALHALLA_BACKUP_SERVER_PORT
             read -xP "Please specify the name of the user to log in to the SSH server: " VALHALLA_BACKUP_SERVER_USER
+            read -xP "Please specify the path to the key file for logging in to the SSH server: " VALHALLA_BACKUP_SERVER_KEY
     
             if [ -z "$VALHALLA_BACKUP_SERVER_PORT" ]
                 set -x VALHALLA_BACKUP_SERVER_PORT 22
@@ -33,7 +34,7 @@ function backupAction -V dir
             echo "For a seamless experience, please make sure that you are able to establish an unattended ssh connection using key authentication."
             echo
             echo "$(tput bold)This command should succeed without user interaction:$(tput sgr0)"
-            echo "ssh -o PasswordAuthentication=no -p $VALHALLA_BACKUP_SERVER_PORT $VALHALLA_BACKUP_SERVER true"
+            echo "sudo ssh -o PasswordAuthentication=no -i $(string escape -- "$VALHALLA_BACKUP_SERVER_KEY") -p $VALHALLA_BACKUP_SERVER_PORT $VALHALLA_BACKUP_SERVER true"
             read -P "Press enter once you're done: "
             echo
         end
diff --git a/scripts/lib/restoration.fish b/scripts/lib/restoration.fish
index efb82393..0a414e28 100644
--- a/scripts/lib/restoration.fish
+++ b/scripts/lib/restoration.fish
@@ -62,7 +62,7 @@ function runRestorationCommand
             set -a args -p $VALHALLA_BACKUP_SERVER_PORT
         end
 
-        ssh $args "$VALHALLA_BACKUP_SERVER" (string escape -- $argv)
+        sudo ssh -i $(string escape -- "$VALHALLA_BACKUP_SERVER_KEY") $args "$VALHALLA_BACKUP_SERVER" (string escape -- $argv)
     end
 end