diff --git a/nixos/lib/make-iso9660-image.nix b/nixos/lib/make-iso9660-image.nix
index 8cd19b6e187..2c3026875c0 100644
--- a/nixos/lib/make-iso9660-image.nix
+++ b/nixos/lib/make-iso9660-image.nix
@@ -10,9 +10,9 @@
   contents
 
 , # In addition to `contents', the closure of the store paths listed
-  # in `packages' are also placed in the Nix store of the CD.  This is
-  # a list of attribute sets {object, symlink} where `object' if a
-  # store path whose closure will be copied, and `symlink' is a
+  # in `storeContents' are also placed in the Nix store of the CD.
+  # This is a list of attribute sets {object, symlink} where `object'
+  # if a store path whose closure will be copied, and `symlink' is a
   # symlink to `object' that will be added to the CD.
   storeContents ? []