diff --git a/lib/chef/knife/mixin/helper.rb b/lib/chef/knife/mixin/helper.rb
index ea35871..f0277b8 100644
--- a/lib/chef/knife/mixin/helper.rb
+++ b/lib/chef/knife/mixin/helper.rb
@@ -18,9 +18,9 @@ module Mixin
     module Helper
       def set_mode(mode)
         if mode == "client"
-          Chef::Config[:solo] = false
+          Chef::Config[:solo_legacy_mode] = false
         else
-          Chef::Config[:solo] = true
+          Chef::Config[:solo_legacy_mode] = true
         end
       end