diff --git a/nix.conf.example b/nix.conf.example
index 5b6d5b87fe..e17cf3c25f 100644
--- a/nix.conf.example
+++ b/nix.conf.example
@@ -168,23 +168,3 @@
 # Example:
 #   build-cache-failure = true
 #build-cache-failure = false
-
-
-### Option `system'
-#
-# This option specifies the canonical Nix system name of the current
-# installation, such as `i686-linux' or `powerpc-darwin'.  Nix can
-# only build derivations whose `system' attribute equals the value
-# specified here.  In general, it never makes sense to modify this
-# value from its default, since you can use it to `lie' about the
-# platform you are building on (e.g., perform a Mac OS build on a
-# Linux machine; the result would obviously be wrong).  It only makes
-# sense if the Nix binaries can run on multiple platforms, e.g.,
-# `universal binaries' that run on `powerpc-darwin' and `i686-darwin'.
-#
-# It defaults to the canonical Nix system name detected by `configure'
-# at build time.
-#
-# Example:
-#   system = i686-darwin
-#system =