diff --git a/Tests/LibWeb/TestConfig.ini b/Tests/LibWeb/TestConfig.ini
index 90f039a0d83..ffb687301e4 100644
--- a/Tests/LibWeb/TestConfig.ini
+++ b/Tests/LibWeb/TestConfig.ini
@@ -109,6 +109,7 @@ Ref/input/wpt-import/css/CSS2/floats/floats-wrap-bfc-with-margin-001a.tentative.
 Ref/input/wpt-import/css/CSS2/floats/floats-wrap-bfc-001-right-overflow.xht
 Ref/input/wpt-import/css/CSS2/floats/floats-placement-003.html
 Ref/input/wpt-import/css/CSS2/floats/floats-wrap-top-below-bfc-003l.xht
+Ref/input/wpt-import/css/CSS2/floats/block-in-inline-become-float.html
 
 ; WPT ref-tests that are flaky due to unknown reasons
 Ref/input/wpt-import/css/css-contain/contain-size-replaced-006.html