diff --git a/src/html_epub_preprocessor.py b/src/html_epub_preprocessor.py
index 4ce6ce9..f227a9c 100644
--- a/src/html_epub_preprocessor.py
+++ b/src/html_epub_preprocessor.py
@@ -395,7 +395,6 @@ def prepare_title_and_content(title, chapter_tag: BeautifulSoup, remove_title_fr
     if remove_title_from_chapter:
         clean_headings_content(chapter_tag, title_str)
     _process_lists(chapter_tag)
-    _preprocessing_headings(chapter_tag)
     preprocess_table(chapter_tag)
     # 2. class removal
     for tag in chapter_tag.find_all(recursive=True):