diff --git a/crates/typst-realize/src/lib.rs b/crates/typst-realize/src/lib.rs
index f80c9dc23..b7a21e789 100644
--- a/crates/typst-realize/src/lib.rs
+++ b/crates/typst-realize/src/lib.rs
@@ -405,6 +405,7 @@ fn visit_show_rules<'a>(
     let prev_outside = s.outside;
     s.outside &= content.is::<ContextElem>();
     s.engine.route.increase();
+    s.engine.route.check_show_depth().at(content.span())?;
 
     visit_styled(s, realized, Cow::Owned(map), styles)?;