diff --git a/actionview/lib/action_view/template/handlers/erb/erubi.rb b/actionview/lib/action_view/template/handlers/erb/erubi.rb
index 307b852440..e602aa117a 100644
--- a/actionview/lib/action_view/template/handlers/erb/erubi.rb
+++ b/actionview/lib/action_view/template/handlers/erb/erubi.rb
@@ -25,7 +25,7 @@ module ActionView
             src = @src
             view = Class.new(ActionView::Base) {
               include action_view_erb_handler_context._routes.url_helpers
-              class_eval("define_method(:_template) { |local_assigns, output_buffer| #{src} }", @filename || "(erubi)", 0)
+              class_eval("define_method(:_template) { |local_assigns, output_buffer| #{src} }", defined?(@filename) ? @filename : "(erubi)", 0)
             }.empty
             view._run(:_template, nil, {}, ActionView::OutputBuffer.new)
           end