diff --git a/src/epub_postprocessor.py b/src/epub_postprocessor.py
index 5a0c347..e559f6e 100644
--- a/src/epub_postprocessor.py
+++ b/src/epub_postprocessor.py
@@ -263,7 +263,7 @@ class EpubPostprocessor:
                 tag.attrs['id'] = new_id
 
         # ---------------------------------------------------------------------------------
-        internal_link_reg1 = re.compile(r'(^.+\.(html|xhtml)$)')  # anchor is a whole xhtml file
+        internal_link_reg1 = re.compile(r'(^(?!https?://).+\.(html|xhtml)$)')  # anchor is a whole xhtml file
         for toc_href in self.added_to_toc_hrefs:
             soup = self.href2soup_html[toc_href]
             for internal_link_tag in soup.find_all('a', {'href': internal_link_reg1}):
@@ -414,7 +414,7 @@ if __name__ == "__main__":
 
     logger_object = BookLogger(name=f'epub', main_logger=logger, book_id=0)
 
-    json_converter = EpubPostprocessor('/home/katerina/PycharmProjects/Jenia/converter/epub/9781284171242.epub',
+    json_converter = EpubPostprocessor('/home/katerina/PycharmProjects/Jenia/converter/epub/9781119682387_pre_code2.epub',
                                        logger=logger_object)
     tmp = json_converter.convert_to_dict()