diff --git a/renderer/fifty_ohm_html_renderer.py b/renderer/fifty_ohm_html_renderer.py
index e48d73c..5fe08fe 100644
--- a/renderer/fifty_ohm_html_renderer.py
+++ b/renderer/fifty_ohm_html_renderer.py
@@ -21,7 +21,7 @@ class FiftyOhmHtmlRenderer(HtmlRenderer):
         return " – "
 
     def render_block_comment(self, token):
-        return "a"
+        return ""
 
     def render_span_comment(self, token):
         return ""