diff --git a/app/views/layouts/paper.html.slim b/app/views/layouts/paper.html.slim
index 382f390..fac42ee 100644
--- a/app/views/layouts/paper.html.slim
+++ b/app/views/layouts/paper.html.slim
@@ -11,5 +11,8 @@ html
       == Rails.application.assets.find_asset('note_pdf.css').to_s.html_safe
     style
       | @page { size: A4 }
+    style
+      | html { -webkit-print-color-adjust: exact; }
+
   body.A4
     == yield