diff --git a/plugins/commands/box/command/outdated.rb b/plugins/commands/box/command/outdated.rb
index 549c4c643..03c94ff0a 100644
--- a/plugins/commands/box/command/outdated.rb
+++ b/plugins/commands/box/command/outdated.rb
@@ -50,6 +50,7 @@ module VagrantPlugins
               machine: machine,
             }.merge(download_options))
           end
+          return 0
         end
 
         def outdated_global(download_options)