diff --git a/pkgs/tools/system/rsyslog/default.nix b/pkgs/tools/system/rsyslog/default.nix
index 4bcd050f7cbf..d7b4b16ad734 100644
--- a/pkgs/tools/system/rsyslog/default.nix
+++ b/pkgs/tools/system/rsyslog/default.nix
@@ -60,12 +60,12 @@
   nixosTests,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "rsyslog";
   version = "8.2512.0";
 
   src = fetchurl {
-    url = "https://www.rsyslog.com/files/download/rsyslog/${pname}-${version}.tar.gz";
+    url = "https://www.rsyslog.com/files/download/rsyslog/${finalAttrs.pname}-${finalAttrs.version}.tar.gz";
     hash = "sha256-k8UAJdkLbHlfo1DVaj2DK/zkUEPqm9aCQNnCqTlLxik=";
   };
 
@@ -180,7 +180,7 @@ stdenv.mkDerivation rec {
     (lib.enableFeature true "generate-man-pages")
   ];
 
-  NIX_CFLAGS_LINK = "-lz";
+  env.NIX_CFLAGS_LINK = "-lz";
 
   passthru.tests = {
     nixos-rsyslogd = nixosTests.rsyslogd;
@@ -190,9 +190,9 @@ stdenv.mkDerivation rec {
     homepage = "https://www.rsyslog.com/";
     description = "Enhanced syslog implementation";
     mainProgram = "rsyslogd";
-    changelog = "https://raw.githubusercontent.com/rsyslog/rsyslog/v${version}/ChangeLog";
+    changelog = "https://raw.githubusercontent.com/rsyslog/rsyslog/v${finalAttrs.version}/ChangeLog";
     license = lib.licenses.gpl3Only;
     platforms = lib.platforms.linux;
     maintainers = [ ];
   };
-}
+})