diff --git a/nixos/doc/manual/installation/installing.xml b/nixos/doc/manual/installation/installing.xml
index e5fb95f7dcf..9cea2db610e 100644
--- a/nixos/doc/manual/installation/installing.xml
+++ b/nixos/doc/manual/installation/installing.xml
@@ -335,7 +335,7 @@
If you’re using the graphical ISO image, other editors may be available
(such as vim). If you have network access, you can also
install other editors — for instance, you can install Emacs by running
- nix-env -i emacs.
+ nix-env -f '<nixpkgs>' -iA emacs.
@@ -467,10 +467,10 @@ Retype new UNIX password: ***
You may also want to install some software. For instance,
-$ nix-env -qa \*
+$ nix-env -qaP \*
shows what packages are available, and
-$ nix-env -i w3m
+$ nix-env -f '<nixpkgs>' -iA w3m
install the w3m browser.
diff --git a/nixos/modules/services/editors/emacs.xml b/nixos/modules/services/editors/emacs.xml
index a3041ae22e7..acd69f18376 100644
--- a/nixos/modules/services/editors/emacs.xml
+++ b/nixos/modules/services/editors/emacs.xml
@@ -552,7 +552,7 @@ emacsclient --create-frame --tty # opens a new frame on the current terminal
(NixOS), or run
- nix-env -i pkgs.docbook5
+ nix-env -f '<nixpkgs>' -iA docbook5
(Nix).