1 files changed, 2 insertions, 0 deletions
diff --git a/Userland/Libraries/LibWeb/Layout/FormattingState.h b/Userland/Libraries/LibWeb/Layout/FormattingState.h
index ca330caa65..925b69aae2 100644
--- a/Userland/Libraries/LibWeb/Layout/FormattingState.h
+++ b/Userland/Libraries/LibWeb/Layout/FormattingState.h
@@ -107,6 +107,8 @@ struct FormattingState {
     };
     HashMap<NodeWithStyleAndBoxModelMetrics const*, IntrinsicSizes> mutable intrinsic_sizes;
 
+    HashMap<Box const*, float> mutable flex_item_size_cache;
+
     FormattingState const* m_parent { nullptr };
     FormattingState const& m_root;
 };