diff --git a/markdown2html.py b/markdown2html.py
index 1195c15..ce046fa 100644
--- a/markdown2html.py
+++ b/markdown2html.py
@@ -33,7 +33,7 @@ def markdown2html(markdown, basepath, re_render, resources, viewport_width, font
     """
     html = markdowner.convert(markdown)
 
-    soup = bs4.BeautifulSoup(html, "html.parser")
+    soup = bs4(html, "html.parser")
     for img_element in soup.find_all("img"):
         src = img_element["src"]
 
@@ -79,7 +79,7 @@ def markdown2html(markdown, basepath, re_render, resources, viewport_width, font
             .replace("\n", "<br />")
         )
 
-        code_element.replace_with(bs4.BeautifulSoup(fixed_pre, "html.parser"))
+        code_element.replace_with(bs4(fixed_pre, "html.parser"))
 
     # FIXME: highlight the code using Sublime's syntax