diff --git a/crates/typst-layout/src/pages/mod.rs b/crates/typst-layout/src/pages/mod.rs
index ec0dc2c05..7cd4b1480 100644
--- a/crates/typst-layout/src/pages/mod.rs
+++ b/crates/typst-layout/src/pages/mod.rs
@@ -86,6 +86,7 @@ fn layout_document_impl(
     )?;
 
     let pages = layout_pages(&mut engine, &mut children, &mut locator, styles)?;
+    std::hint::black_box(introspect_pages(&pages));
     let introspector = introspect_pages(&pages);
 
     Ok(PagedDocument { pages, info, introspector })