diff --git a/scrapy/pipelines/images.py b/scrapy/pipelines/images.py
index 45ac03820..6b97190ee 100644
--- a/scrapy/pipelines/images.py
+++ b/scrapy/pipelines/images.py
@@ -179,6 +179,6 @@ class ImagesPipeline(FilesPipeline):
         image_guid = hashlib.sha1(to_bytes(request.url)).hexdigest()
         return f'full/{image_guid}.jpg'
 
-    def thumb_path(self, request, thumb_id, response=None, info=None, item=None):
+    def thumb_path(self, request, thumb_id, response=None, info=None, *, item=None):
         thumb_guid = hashlib.sha1(to_bytes(request.url)).hexdigest()
         return f'thumbs/{thumb_id}/{thumb_guid}.jpg'
diff --git a/scrapy/pipelines/media.py b/scrapy/pipelines/media.py
index d1bccf323..430c37227 100644
--- a/scrapy/pipelines/media.py
+++ b/scrapy/pipelines/media.py
@@ -121,7 +121,7 @@ class MediaPipeline:
     def _make_compatible(self):
         """Make overridable methods of MediaPipeline and subclasses backwards compatible"""
         methods = [
-            "file_path", "media_to_download", "media_downloaded",
+            "file_path", "thumb_path", "media_to_download", "media_downloaded",
             "file_downloaded", "image_downloaded", "get_images"
         ]