diff --git a/app.py b/app.py
index bcb5c46..d6aaa9d 100644
--- a/app.py
+++ b/app.py
@@ -367,7 +367,8 @@ def rewrite_eml_file_links(md_content, filepath):
         return f"[{link_text}]({file_url})"
     
     # Replace all markdown link references to .eml files
-    md_content = re.sub(r'\[([^\]]+)\]\(([^\)]+\.eml)\)', replace_link_path, md_content)
+    # Use non-greedy matching (.+?) to properly handle special characters like parentheses in filenames
+    md_content = re.sub(r'\[([^\]]+)\]\((.+?\.eml)\)', replace_link_path, md_content)
     return md_content
 
 def build_directory_tree():