diff --git a/pkgs/tools/text/zstxtns-utils/default.nix b/pkgs/tools/text/zstxtns-utils/default.nix
index eebf0785394f..362f2fca84d9 100644
--- a/pkgs/tools/text/zstxtns-utils/default.nix
+++ b/pkgs/tools/text/zstxtns-utils/default.nix
@@ -1,5 +1,4 @@
-{ bash
-, coreutils
+{ coreutils
 , fetchurl
 , gnugrep
 , lib
@@ -18,7 +17,6 @@ stdenvNoCC.mkDerivation rec {
   };
 
   nativeBuildInputs = [ makeWrapper ];
-  buildInputs = [ bash coreutils gnugrep moreutils ];
 
   installPhase = ''
     runHook preInstall
@@ -27,8 +25,8 @@ stdenvNoCC.mkDerivation rec {
   '';
 
   postInstall = ''
-    wrapProgram $out/bin/zstxtns-merge --prefix PATH ":" "${lib.makeBinPath [coreutils gnugrep moreutils]}"
-    wrapProgram $out/bin/zstxtns-unmerge --prefix PATH ":" "${lib.makeBinPath [coreutils gnugrep]}"
+    wrapProgram $out/bin/zstxtns-merge --set PATH "${lib.makeBinPath [coreutils gnugrep moreutils]}"
+    wrapProgram $out/bin/zstxtns-unmerge --set PATH "${lib.makeBinPath [coreutils gnugrep]}"
   '';
 
   meta = with lib; {