diff -u b/core/themes/seven/seven.libraries.yml b/core/themes/seven/seven.libraries.yml
--- b/core/themes/seven/seven.libraries.yml
+++ b/core/themes/seven/seven.libraries.yml
@@ -4,7 +4,7 @@
     base:
       css/base/elements.css: {}
       css/base/typography.css: {}
-      css/base/print.css: { media: print }
+      css/base/print.css: {}
     component:
       css/components/admin-list.css: {}
       css/components/admin-options.css: {}