diff --git a/docs/migrations.rst b/docs/migrations.rst
index bd52196..101c7d5 100644
--- a/docs/migrations.rst
+++ b/docs/migrations.rst
@@ -16,7 +16,7 @@ NixOS 25.11
 This option was introduced in the NixOS 25.11 release cycle, in which case you
 can safely initialize its value at `1`.
 
-:: code-block: nix
+.. code-block:: nix
 
    mailserver.stateVersion = 1;
 
diff --git a/tests/lib/config.nix b/tests/lib/config.nix
index 09ae517..fe66875 100644
--- a/tests/lib/config.nix
+++ b/tests/lib/config.nix
@@ -1,7 +1,4 @@
 {
   # Testing eval failures that result from stateVersion assertion is out of scope
   mailserver.stateVersion = 999;
-
-  # minimum size required by dovecot
-  security.dhparams.defaultBitSize = 2048;
 }