diff --git a/pkgs/by-name/lo/logcheck/package.nix b/pkgs/by-name/lo/logcheck/package.nix
index 1681923c84a4..8b1e6341216f 100644
--- a/pkgs/by-name/lo/logcheck/package.nix
+++ b/pkgs/by-name/lo/logcheck/package.nix
@@ -6,24 +6,23 @@
   perlPackages,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "logcheck";
   version = "1.4.7";
-  _name = "logcheck_${version}";
 
   src = fetchurl {
-    url = "mirror://debian/pool/main/l/logcheck/${_name}.tar.xz";
-    sha256 = "sha256-zBYMvKwo85OI6LluRixOYtAFRTtpV/Hw6qjAk/+c898=";
+    url = "mirror://debian/pool/main/l/logcheck/logcheck_${finalAttrs.version}.tar.xz";
+    hash = "sha256-zBYMvKwo85OI6LluRixOYtAFRTtpV/Hw6qjAk/+c898=";
   };
 
   prePatch = ''
     # do not set sticky bit in nix store.
-    substituteInPlace Makefile --replace 2750 0750
+    substituteInPlace Makefile --replace-fail 2750 0750
   '';
 
   preConfigure = ''
-    substituteInPlace src/logtail --replace "/usr/bin/perl" "${perlPackages.perl}/bin/perl"
-    substituteInPlace src/logtail2 --replace "/usr/bin/perl" "${perlPackages.perl}/bin/perl"
+    substituteInPlace src/logtail --replace-fail "/usr/bin/perl" "${perlPackages.perl}/bin/perl"
+    substituteInPlace src/logtail2 --replace-fail "/usr/bin/perl" "${perlPackages.perl}/bin/perl"
 
     sed -i -e 's|! -f /usr/bin/lockfile|! -f ${lockfile-progs}/bin/lockfile|' \
            -e 's|^\([ \t]*\)lockfile-|\1${lockfile-progs}/bin/lockfile-|' \
@@ -50,4 +49,4 @@ stdenv.mkDerivation rec {
     homepage = "https://salsa.debian.org/debian/logcheck";
     license = lib.licenses.gpl2Plus;
   };
-}
+})