diff --git a/crates/typst-realize/src/lib.rs b/crates/typst-realize/src/lib.rs
index b7a21e789..41c3c4120 100644
--- a/crates/typst-realize/src/lib.rs
+++ b/crates/typst-realize/src/lib.rs
@@ -356,6 +356,14 @@ fn visit_show_rules<'a>(
     // prepare it.
     let mut tags = None;
     if !prepared {
+        std::hint::black_box(prepare(
+            s.engine,
+            s.locator,
+            output.clone().to_mut(),
+            &mut map.clone(),
+            styles,
+        ));
+
         tags = prepare(s.engine, s.locator, output.to_mut(), &mut map, styles)?;
     }