diff --git a/tests/wpt/mozilla/meta/css/incremental_trailing_whitespace_a.html.ini b/tests/wpt/mozilla/meta/css/incremental_trailing_whitespace_a.html.ini
new file mode 100644
index 000000000000..2a72cc1da38c
--- /dev/null
+++ b/tests/wpt/mozilla/meta/css/incremental_trailing_whitespace_a.html.ini
@@ -0,0 +1,3 @@
+[incremental_trailing_whitespace_a.html]
+  type: reftest
+  disabled: https://github.com/servo/servo/issues/10473