diff --git a/newspaper/urls.py b/newspaper/urls.py
index 2d414882..33fd3bda 100644
--- a/newspaper/urls.py
+++ b/newspaper/urls.py
@@ -245,8 +245,13 @@ def url_to_filetype(abs_url):
         path = path[:-1]
     path_chunks = [x for x in path.split('/') if len(x) > 0]
     last_chunk = path_chunks[-1].split('.')  # last chunk == file usually
-    file_type = last_chunk[-1] if len(last_chunk) >= 2 else None
-    return file_type or None
+    if len(last_chunk) < 2:
+        return None
+    file_type = last_chunk[-1]
+    # Assume that file extension is maximum 5 characters long
+    if len(file_type) <= 5 or file_type.lower() in ALLOWED_TYPES:
+        return file_type.lower()
+    return None
 
 def get_domain(abs_url, **kwargs):
     """
diff --git a/tests/data/test_urls.txt b/tests/data/test_urls.txt
index 8807b349..b851ed46 100644
--- a/tests/data/test_urls.txt
+++ b/tests/data/test_urls.txt
@@ -37,3 +37,4 @@
 1 http://www.alarabiya.net/ar/arab-and-world/syria/2014/02/02/%D8%A7%D9%84%D9%86%D8%A7%D8%AA%D9%88-%D9%8A%D8%B9%D9%84%D9%86-%D8%A7%D8%B3%D8%AA%D8%B9%D8%AF%D8%A7%D8%AF%D9%87-%D9%84%D8%AA%D8%AF%D9%85%D9%8A%D8%B1-%D8%A7%D9%84%D8%A3%D8%B3%D9%84%D8%AD%D8%A9-%D8%A7%D9%84%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D9%88%D9%8A%D8%A9-%D8%A7%D9%84%D8%B3%D9%88%D8%B1%D9%8A%D8%A9.html
 1 http://www.almasryalyoum.com/news/details/387323
 1 http://tahrirnews.com/news/view.aspx?cdate=02022014&id=990c7733-9293-4441-982e-a44af000bb19
+1 http://www.enfieldindependent.co.uk/news/14140506.Review_of_the_year__July/