diff --git a/.gitmodules b/.gitmodules
index 92d6e344..6d4f25e1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -19,3 +19,6 @@
 [submodule "vendor/netsurf/libhubbub"]
 	path = vendor/netsurf/libhubbub
 	url = https://source.netsurf-browser.org/libhubbub.git
+[submodule "tests/wpt"]
+	path = tests/wpt
+	url = https://github.com/lightpanda-io/wpt
diff --git a/tests/wpt b/tests/wpt
new file mode 160000
index 00000000..26ad8ed7
--- /dev/null
+++ b/tests/wpt
@@ -0,0 +1 @@
+Subproject commit 26ad8ed75d77406e1aea6d8ac29c5207efaeaeaa