diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 32f4f4583378..42226374159f 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -18175,9 +18175,11 @@ with self; {
       url = "mirror://cpan/authors/id/N/NJ/NJH/MusicBrainz-DiscID-0.06.tar.gz";
       hash = "sha256-ugtu0JiX/1Y7pZhy7pNxW+83FXUVsZt8bW8obmVI7Ks=";
     };
-    perlPreHook = lib.optionalString stdenv.isi686 "export LD=$CC"; # fix undefined reference to `__stack_chk_fail_local'
-    # Makefile.PL in this package uses which to find pkg-config -- make it use path instead
-    patchPhase = ''sed -ie 's/`which pkg-config`/"pkg-config"/' Makefile.PL'';
+    # Makefile.PL in this package uses which to find pkg-config -- make it use envvar instead
+    postPatch = ''
+      substituteInPlace Makefile.PL \
+        --replace-fail '`which pkg-config`' "'$PKG_CONFIG'"
+    '';
     doCheck = false; # The main test performs network access
     nativeBuildInputs = [ pkgs.pkg-config ];
     propagatedBuildInputs = [ pkgs.libdiscid ];