diff --git a/lib/vagrant-hostmanager/hosts_file.rb b/lib/vagrant-hostmanager/hosts_file.rb
index 24d243d..e931621 100644
--- a/lib/vagrant-hostmanager/hosts_file.rb
+++ b/lib/vagrant-hostmanager/hosts_file.rb
@@ -18,7 +18,7 @@ module VagrantPlugins
           move_cmd = 'mv -force'
         else 
           realhostfile = '/etc/hosts'
-          move_cmd = 'mv'
+          move_cmd = 'mv -f'
         end
         # download and modify file with Vagrant-managed entries
         file = @global_env.tmp_path.join("hosts.#{machine.name}")