diff --git a/Documentation/block/ublk.rst b/Documentation/block/ublk.rst
index 51665a3e6a50..1e0e7358e14a 100644
--- a/Documentation/block/ublk.rst
+++ b/Documentation/block/ublk.rst
@@ -333,6 +333,4 @@ References
 
 .. [#userspace_readme] https://github.com/ming1/ubdsrv/blob/master/README
 
-.. [#stefan] https://lore.kernel.org/linux-block/YoOr6jBfgVm8GvWg@stefanha-x1.localdomain/
-
 .. [#xiaoguang] https://lore.kernel.org/linux-block/YoOr6jBfgVm8GvWg@stefanha-x1.localdomain/