diff --git a/plugins/kernel_v1/config/vm.rb b/plugins/kernel_v1/config/vm.rb
index 21a4c10dd..67e63cab6 100644
--- a/plugins/kernel_v1/config/vm.rb
+++ b/plugins/kernel_v1/config/vm.rb
@@ -110,8 +110,8 @@ module VagrantPlugins
         # VirtualBox provider on the new VM.
         if !self.customizations.empty?
           warnings << "`config.vm.customize` calls are VirtualBox-specific. If you're\n" +
-            "using any other provider, you'll have to find provider-specific configuration\n" +
-            "to translate to manually in your Vagrantfile."
+            "using any other provider, you'll have to use config.vm.provider in a\n" +
+            "v2 configuration block."
 
           new.vm.provider :virtualbox do |vb|
             self.customizations.each do |customization|