diff --git a/pkgs/applications/misc/nnn/default.nix b/pkgs/applications/misc/nnn/default.nix
index 1c1fd292e5d..9eb5382cde9 100644
--- a/pkgs/applications/misc/nnn/default.nix
+++ b/pkgs/applications/misc/nnn/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, pkgconfig, ncurses, readline, conf ? null }:
+{ stdenv, fetchFromGitHub, pkgconfig, ncurses, conf ? null }:
 
 with stdenv.lib;
 
@@ -17,9 +17,16 @@ stdenv.mkDerivation rec {
   preBuild = optionalString (conf!=null) "cp ${configFile} nnn.h";
 
   nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ ncurses readline ];
+  buildInputs = [ ncurses ];
 
-  installFlags = [ "DESTDIR=$(out)" "PREFIX=" ];
+  makeFlags = [ "DESTDIR=${placeholder "out"}" "PREFIX=" ];
+
+  # shell completions
+  postInstall = ''
+    install -Dm555 scripts/auto-completion/bash/nnn-completion.bash $out/share/bash-completion/completions/nnn.bash
+    install -Dm555 scripts/auto-completion/zsh/_nnn -t $out/share/zsh/site-functions
+    install -Dm555 scripts/auto-completion/fish/nnn.fish -t $out/share/fish/vendor_completions.d
+  '';
 
   meta = {
     description = "Small ncurses-based file browser forked from noice";