diff --git a/crates/notgraph/src/emit.rs b/crates/notgraph/src/emit.rs
index e5b30fc..5bbbd8d 100644
--- a/crates/notgraph/src/emit.rs
+++ b/crates/notgraph/src/emit.rs
@@ -292,7 +292,7 @@ fn write_html(
         }
 
         module_diagrams.push_str(&format!(
-            "<h3>{}</h3>\n<div class=\"graph-wrap\"><pre class=\"mermaid\">\n%%{{init: {{\"theme\":\"dark\"}}}}\n{}</pre></div>\n",
+            "<h3>{}</h3>\n<div class=\"graph-wrap\"><pre class=\"mermaid\">\n%%{{init: {{\"theme\":\"dark\"}}}}%%\n{}</pre></div>\n",
             mg.krate, d
         ));
     }