diff --git a/cps/kobo.py b/cps/kobo.py
index dfda6483..c8fecd1c 100644
--- a/cps/kobo.py
+++ b/cps/kobo.py
@@ -930,7 +930,8 @@ def get_current_bookmark_response(current_bookmark):
 @kobo.route("/<book_uuid>/<width>/<height>/<Quality>/<isGreyscale>/image.jpg")
 @requires_kobo_auth
 def HandleCoverImageRequest(book_uuid, width, height, Quality, isGreyscale):
-    book_cover = helper.get_book_cover_with_uuid(book_uuid, resolution=COVER_THUMBNAIL_SMALL)
+    resolution = None if height > 1000 else COVER_THUMBNAIL_SMALL
+    book_cover = helper.get_book_cover_with_uuid(book_uuid, resolution=resolution)
     if book_cover:
         log.debug("Serving local cover image of book %s" % book_uuid)
         return book_cover