diff --git a/pkgs/tools/misc/pws/default.nix b/pkgs/tools/misc/pws/default.nix
index e98323b75eea..1cfa64909f3a 100644
--- a/pkgs/tools/misc/pws/default.nix
+++ b/pkgs/tools/misc/pws/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ makeWrapper ];
 
-  phases = ["installPhase"];
+  dontUnpack = true;
 
   installPhase = let
     env = bundlerEnv {