diff --git a/Tests/LibWeb/TestConfig.ini b/Tests/LibWeb/TestConfig.ini
index 24bea23b45..ad8863712a 100644
--- a/Tests/LibWeb/TestConfig.ini
+++ b/Tests/LibWeb/TestConfig.ini
@@ -1,3 +1,4 @@
 [Skipped]
+Text/input/HTML/Window-postMessage.html
 Text/input/Worker/Worker-echo.html
 Text/input/window-scrollTo.html