diff --git a/docs/tutorial.rst b/docs/tutorial.rst
index a937f61..c1797fd 100644
--- a/docs/tutorial.rst
+++ b/docs/tutorial.rst
@@ -6,6 +6,5 @@ Tutorial
    The official tutorial is still being written. Until it's ready, consider following one of the tutorials written by the Amaranth community:
 
       * `Learning FPGA Design with nMigen <https://vivonomicon.com/2020/04/14/learning-fpga-design-with-nmigen/>`_ by Vivonomicon;
-      * `nMigen Step by Step Tutorial <http://blog.lambdaconcept.com/doku.php?id=nmigen:tutorial>`_ by LambdaConcept;
       * `"I want to learn nMigen" <https://github.com/kbob/nmigen-examples>`_ by kbob;
       * `A tutorial for using nMigen <https://github.com/robertbaruch/nmigen-tutorial>`_ by Robert Baruch.