diff --git a/tests/reftests/css-match-class.css b/tests/reftests/css-match-class.css
index bff86470ff..568a6c642a 100644
--- a/tests/reftests/css-match-class.css
+++ b/tests/reftests/css-match-class.css
@@ -1,3 +1,5 @@
+@import url("reset-to-defaults.css");
+
 .window {
   engine: none;
   background-image: none;
diff --git a/tests/reftests/css-match-name.css b/tests/reftests/css-match-name.css
index 98607a0f58..8af84dfddf 100644
--- a/tests/reftests/css-match-name.css
+++ b/tests/reftests/css-match-name.css
@@ -1,3 +1,5 @@
+@import url("reset-to-defaults.css");
+
 #window {
   engine: none;
   background-image: none;
diff --git a/tests/reftests/css-match-subtype.css b/tests/reftests/css-match-subtype.css
index 8671126874..3e2e2a8342 100644
--- a/tests/reftests/css-match-subtype.css
+++ b/tests/reftests/css-match-subtype.css
@@ -1,3 +1,5 @@
+@import url("reset-to-defaults.css");
+
 GtkContainer {
   engine: none;
   background-image: none;
diff --git a/tests/reftests/css-match-type.css b/tests/reftests/css-match-type.css
index d2abe6f3f7..330b81388e 100644
--- a/tests/reftests/css-match-type.css
+++ b/tests/reftests/css-match-type.css
@@ -1,3 +1,5 @@
+@import url("reset-to-defaults.css");
+
 GtkWindow {
   engine: none;
   background-image: none;