diff --git a/process_ebooks.py b/process_ebooks.py
index cf2a199..a91d6f9 100755
--- a/process_ebooks.py
+++ b/process_ebooks.py
@@ -20,7 +20,7 @@ else:
     ebook_dir = os.path.expanduser(ebook_dir)
     for root, dirs, files in os.walk(ebook_dir):
 	for file in files:
-	    if re.search('.(rar|zip|epub|mobi|lit|html)(.\d+)?', file):
+	    if re.search('.(rar|zip|epub|mobi|lit|html|rtf|azw3)(.\d+)?', file):
                 try:
                     if os.path.getmtime(file) >= age:
         	        books.append(os.path.join(root, file))
@@ -42,13 +42,13 @@ for book in books:
         # unzip
         archive = zipfile.ZipFile(book)
         archive.extractall(tmp)
-    elif re.search('.(epub|mobi|lit|html)', book):
+    elif re.search('.(epub|mobi|lit|html|rtf|awz3)', book):
         # copy book into tmp
         shutil.copy(book, tmp)
     # find epub, mobi or lit and import into calibre
     for root, dirs, files in os.walk(tmp):
 	for file in files:
-            if re.search('.(epub|mobi|lit|html)$', file):
+            if re.search('.(epub|mobi|lit|html|rtf|azw3)$', file):
                 try:
                     subprocess.call(["calibredb", "add", os.path.join(root, file)])
                 except Exception, e: