diff --git a/plugins/providers/docker/action/build.rb b/plugins/providers/docker/action/build.rb
index 0cd613045..f6c071fc0 100644
--- a/plugins/providers/docker/action/build.rb
+++ b/plugins/providers/docker/action/build.rb
@@ -43,7 +43,7 @@ module VagrantPlugins
               dockerfile      = machine.provider_config.dockerfile
               dockerfile_path = File.join(build_dir, dockerfile)
 
-              args.push("--file=\"#{dockerfile_path}\"")
+              args.push("--file").push(dockerfile_path)
               machine.ui.output(
                 I18n.t("docker_provider.building_named_dockerfile",
                 file: machine.provider_config.dockerfile))