diff --git a/plugins/providers/hyperv/cap/configure_disks.rb b/plugins/providers/hyperv/cap/configure_disks.rb
index 9ee570956..f73753c15 100644
--- a/plugins/providers/hyperv/cap/configure_disks.rb
+++ b/plugins/providers/hyperv/cap/configure_disks.rb
@@ -144,8 +144,8 @@ module VagrantPlugins
           machine.ui.detail(I18n.t("vagrant.cap.configure_disks.create_disk", name: disk_config.name))
           disk_provider_config = {}
           disk_provider_config = disk_config.provider_config[:hyperv] if disk_config.provider_config
-
-          if disk_provider_config
+          # Convert any shortcut options for powershell commands
+          if !disk_provider_config.empty?
             disk_provider_config = convert_size_vars!(disk_provider_config)
           end