diff --git a/src/epub_converter/epub_converter.py b/src/epub_converter/epub_converter.py
index a93e577..b5e504b 100644
--- a/src/epub_converter/epub_converter.py
+++ b/src/epub_converter/epub_converter.py
@@ -214,23 +214,24 @@ class EpubConverter:
 
             sub_nodes = []
             for elem in second:
-                if 'chapter' in (elem.title.lower() if isinstance(elem, Link) else elem[0].title.lower()):
+                if 'chapter' in (elem.title.lower() if isinstance(elem, Link) else elem[0].title.lower())\
+                        and 'appendices' not in (elem.title.lower() if isinstance(elem, Link) else elem[0].title.lower()):
                     self.offset_sub_nodes.append(self.build_adjacency_list_from_toc(elem, lvl))
                 else:
                     sub_nodes.append(
                         self.build_adjacency_list_from_toc(elem, lvl + 1))
 
-            self.adjacency_list[nav_point] = sub_nodes or self.offset_sub_nodes
+            self.adjacency_list[nav_point] = sub_nodes
             self.hrefs_added_to_toc.add(nav_point.href)
             return nav_point
 
         elif isinstance(element, list) and (lvl == 0):
             nodes = []
-            # go through every element
+            # add through every element
             for elem in element:
                 nodes.append(
                     self.build_adjacency_list_from_toc(elem, lvl + 1))
-                # go through every offset sub element
+                # set chapter_i after Section & add through every offset sub element
                 for offset_sub_node in self.offset_sub_nodes:
                     nodes.append(offset_sub_node)
                 self.offset_sub_nodes = []
@@ -510,7 +511,7 @@ if __name__ == "__main__":
 
     logger_object = BookLogger(name=f'epub', main_logger=logger, book_id=0)
 
-    json_converter = EpubConverter('../../epub/9781634259804.epub',
+    json_converter = EpubConverter('../../epub/9781641051217.epub',
                                    logger=logger_object)
     tmp = json_converter.convert_to_dict()