diff --git a/pkgs/tools/misc/bat/default.nix b/pkgs/tools/misc/bat/default.nix
index 449be0f017f6..6b62ca247cb0 100644
--- a/pkgs/tools/misc/bat/default.nix
+++ b/pkgs/tools/misc/bat/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, rustPlatform, fetchFromGitHub, llvmPackages, pkgconfig, zlib
-, Security, libiconv
+{ stdenv, rustPlatform, fetchFromGitHub, llvmPackages, pkgconfig
+, Security, libiconv, installShellFiles
 }:
 
 rustPlatform.buildRustPackage rec {
@@ -16,15 +16,15 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "0d7h0kn41w6wm4w63vjy2i7r19jkansfvfjn7vgh2gqh5m60kal2";
 
-  nativeBuildInputs = [ pkgconfig llvmPackages.libclang zlib ];
+  nativeBuildInputs = [ pkgconfig llvmPackages.libclang installShellFiles ];
 
   buildInputs = stdenv.lib.optionals stdenv.isDarwin [ Security libiconv ];
 
   LIBCLANG_PATH = "${llvmPackages.libclang}/lib";
 
   postInstall = ''
-    install -m 444 -Dt $out/share/man/man1 doc/bat.1
-    install -m 444 -Dt $out/share/fish/vendor_completions.d assets/completions/bat.fish
+    installManPage doc/bat.1
+    installShellCompletion assets/completions/bat.fish
   '';
 
   meta = with stdenv.lib; {