diff --git a/nixos/modules/security/grsecurity.xml b/nixos/modules/security/grsecurity.xml
index d7089154449..37314bdba8a 100644
--- a/nixos/modules/security/grsecurity.xml
+++ b/nixos/modules/security/grsecurity.xml
@@ -149,6 +149,10 @@
 
         <listitem><para>Trusted path execution: a desirable feature, but
         requires some more work to operate smoothly on NixOS.</para></listitem>
+
+        <listitem><para>Module hardening: would break user initiated module
+        loading. Might enable this at some point, depending on the potential
+        breakage.</para></listitem>
       </itemizedlist>
     </para></listitem>