diff --git a/pkgs/data/misc/publicsuffix-list/default.nix b/pkgs/data/misc/publicsuffix-list/default.nix
index db74b74f22d9..063e120d3c4b 100644
--- a/pkgs/data/misc/publicsuffix-list/default.nix
+++ b/pkgs/data/misc/publicsuffix-list/default.nix
@@ -11,8 +11,10 @@ in fetchFromGitHub {
   sha256 = "sha256-Q8uIXM1CMu8dlWcVoL17M1XRGu3kG7Y7jpx0oHQh+2I=";
 
   postFetch = ''
-    tar xf $downloadedFile --strip=1
-    install -Dm0444 public_suffix_list.dat tests/test_psl.txt -t $out/share/publicsuffix
+    install -Dm0444 $out/public_suffix_list.dat $out/tests/test_psl.txt -t $out/share/publicsuffix
+    shopt -s extglob dotglob
+    rm -rf $out/!(share)
+    shopt -u extglob dotglob
   '';
 
   meta = with lib; {