diff --git a/src/calibre/ebooks/metadata/fetch.py b/src/calibre/ebooks/metadata/fetch.py
index ee90abf679..86e7c99de5 100644
--- a/src/calibre/ebooks/metadata/fetch.py
+++ b/src/calibre/ebooks/metadata/fetch.py
@@ -10,7 +10,7 @@ from calibre import prints
 from calibre.utils.config import OptionParser
 from calibre.utils.logging import default_log
 from calibre.customize import Plugin
-from calibre.ebooks.metadata.library_thing import check_for_cover
+from calibre.ebooks.metadata.covers import check_for_cover
 
 metadata_config = None
 
@@ -289,11 +289,10 @@ def filter_metadata_results(item):
 
 def do_cover_check(item):
     item.has_cover = False
-    if item.isbn:
-        try:
-            item.has_cover = check_for_cover(item.isbn)
-        except:
-            pass # Cover not found
+    try:
+        item.has_cover = check_for_cover(item)
+    except:
+        pass # Cover not found
 
 def check_for_covers(items):
     threads = [Thread(target=do_cover_check, args=(item,)) for item in items]