diff --git a/tests/reftests/unresolvable.css b/tests/reftests/unresolvable.css
index 7cf57eb8fc..0590361cdc 100644
--- a/tests/reftests/unresolvable.css
+++ b/tests/reftests/unresolvable.css
@@ -1,6 +1,6 @@
+@import "reset-to-defaults.css";
+
 GtkWindow {
-  engine: none;
-  background-image: none;
   background-color: @doesntexist;
   box-shadow: @nonexistant 5 5;
   border-image: -gtk-gradient(linear,