diff --git a/Libraries/LibWeb/Layout/LineBoxFragment.h b/Libraries/LibWeb/Layout/LineBoxFragment.h
index 888a3b094c0..d8dd4c5cfd8 100644
--- a/Libraries/LibWeb/Layout/LineBoxFragment.h
+++ b/Libraries/LibWeb/Layout/LineBoxFragment.h
@@ -9,6 +9,7 @@
 #include <LibGC/Ptr.h>
 #include <LibGfx/Rect.h>
 #include <LibGfx/TextLayout.h>
+#include <LibWeb/CSS/Enums.h>
 #include <LibWeb/Forward.h>
 #include <LibWeb/PixelUnits.h>