diff --git a/setups/macos.sh b/setups/macos.sh
index dea201b..9baa653 100755
--- a/setups/macos.sh
+++ b/setups/macos.sh
@@ -53,7 +53,7 @@ echo "Set up UTM and configure DNS settings."
 
 echo ""
 echo "Once your VMs and DNS are set up, add your SSH key to the remote server:"
-echo "   ssh-copy-id $USER@<server-ip>"
+echo "   ssh-copy-id -i ~/.ssh/id_25519_internal $USER@<server-ip>"
 
 echo ""
 echo "Add your SSH key for Git access. Your public key is:"