diff --git a/docs/_extra/specs/MESA_shader_debug.spec b/docs/_extra/specs/OLD/MESA_shader_debug.spec
similarity index 100%
rename from docs/_extra/specs/MESA_shader_debug.spec
rename to docs/_extra/specs/OLD/MESA_shader_debug.spec
diff --git a/docs/extensions.rst b/docs/extensions.rst
index d0e168333ca..2225abd8a6b 100644
--- a/docs/extensions.rst
+++ b/docs/extensions.rst
@@ -20,7 +20,8 @@ specifications follow.
    (obsolete)
 -  `MESA_set_3dfx_mode.spec <specs/OLD/MESA_set_3dfx_mode.spec>`__
    (obsolete)
--  `MESA_shader_debug.spec <specs/MESA_shader_debug.spec>`__
+-  `MESA_shader_debug.spec <specs/OLD/MESA_shader_debug.spec>`__
+   (obsolete)
 -  `MESA_sprite_point.spec <specs/OLD/MESA_sprite_point.spec>`__
    (obsolete)
 -  `MESA_swap_control.spec <specs/MESA_swap_control.spec>`__