diff --git a/html2md.py b/html2md.py
index 9cd7991..b81dbdd 100644
--- a/html2md.py
+++ b/html2md.py
@@ -62,8 +62,9 @@ class SmartMarkdownConverter:
             tag.decompose()
 
         # Remove common navigation/chrome elements - single combined selector
+        # Note: aside:not(.quote) preserves Discourse quote blocks
         noise_selector = ', '.join([
-            'nav', 'header', 'footer', 'aside',
+            'nav', 'header', 'footer', 'aside:not(.quote)',
             '.sidebar', '.nav', '.navigation', '.menu', '.breadcrumb',
             '.header', '.footer', '.logo', '.site-logo',
             '#header', '#footer', '#nav', '#sidebar',