diff --git a/docs/blobstore.rst b/docs/blobstore.rst
index 08b83e11..3a2cb861 100644
--- a/docs/blobstore.rst
+++ b/docs/blobstore.rst
@@ -7,3 +7,4 @@ Blobstore
     :inherited-members:
     :undoc-members:
     :show-inheritance:
+    :exclude-members: BlobKey