diff --git a/src/utils/mod.rs b/src/utils/mod.rs
index e401fe49..68e2c043 100644
--- a/src/utils/mod.rs
+++ b/src/utils/mod.rs
@@ -379,7 +379,7 @@ more text with spaces
 ```
 "#;
 
-            let expected = r#"<pre><code class="language-rust,no_run,,,should_panic,,property_3"></code></pre>
+            let expected = r#"<pre><code class="language-rust,,,,,no_run,,,should_panic,,,,property_3"></code></pre>
 "#;
             assert_eq!(render_markdown(input, false), expected);
             assert_eq!(render_markdown(input, true), expected);