diff --git a/plugins/kernel_v2/config/disk.rb b/plugins/kernel_v2/config/disk.rb
index c5407edae..d4ba309cd 100644
--- a/plugins/kernel_v2/config/disk.rb
+++ b/plugins/kernel_v2/config/disk.rb
@@ -103,8 +103,6 @@ module VagrantPlugins
 
         if @primary == UNSET_VALUE
           @primary = false
-        else
-          @primary = true
         end
 
         # Give the disk a default name if unset