diff --git a/src/docx_converter/libre_html2json_converter.py b/src/docx_converter/libre_html2json_converter.py
index 45522da..0cd92fa 100644
--- a/src/docx_converter/libre_html2json_converter.py
+++ b/src/docx_converter/libre_html2json_converter.py
@@ -107,10 +107,7 @@ class LibreHTML2JSONConverter:
 
     def convert_to_dict(self):
         """Function which convert list of html nodes to appropriate json structure."""
-        json_strc = []
-        ind = 0
-        ch_num = 0
-        ch_amt = 0
+        json_strc, ind, ch_num, ch_amt = [], 0, 0, 0
 
         try:
             while ind < len(self.content):
diff --git a/src/epub_converter/footnotes_processing.py b/src/epub_converter/footnotes_processing.py
index d9840f3..ef2eac0 100644
--- a/src/epub_converter/footnotes_processing.py
+++ b/src/epub_converter/footnotes_processing.py
@@ -84,4 +84,4 @@ def preprocess_footnotes(source_html_tag: Tag, href2soup_html: dict = None, note
         footnote_tag = footnote_tag.find(
             attrs={"role": "doc-backlink"}) or footnote_tag
         new_footnotes_tags.append(footnote_tag)
-    return footnotes, new_noterefs_tags, new_footnotes_tags
\ No newline at end of file
+    return footnotes, new_noterefs_tags, new_footnotes_tags
diff --git a/src/epub_converter/image_processing.py b/src/epub_converter/image_processing.py
index 950bbdd..aefa24d 100644
--- a/src/epub_converter/image_processing.py
+++ b/src/epub_converter/image_processing.py
@@ -64,4 +64,4 @@ def update_images_src_links(body_tag: BeautifulSoup,
             del img.attrs["height"]
         if img.attrs.get("style"):
             del img.attrs["style"]
-    return path2aws_path
\ No newline at end of file
+    return path2aws_path