1 files changed, 5 insertions, 5 deletions
diff --git a/pkgs/tools/misc/datefmt/default.nix b/pkgs/tools/misc/datefmt/default.nix
index 36fdf9fcfebbc..1c1efd792a203 100644
--- a/pkgs/tools/misc/datefmt/default.nix
+++ b/pkgs/tools/misc/datefmt/default.nix
@@ -1,17 +1,17 @@
-{ lib, stdenv, fetchurl, datefmt, testers }:
+{ lib, stdenv, fetchurl, testers }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "datefmt";
   version = "0.2.2";
 
   src = fetchurl {
-    url = "https://cdn.jb55.com/tarballs/datefmt/datefmt-${version}.tar.gz";
+    url = "https://cdn.jb55.com/tarballs/datefmt/datefmt-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-HgW/vOGVEmAbm8k3oIwIa+cogq7qmX7MfTmHqxv9lhY=";
   };
 
   makeFlags = [ "PREFIX=$(out)" ];
 
-  passthru.tests.version = testers.testVersion { package = datefmt; };
+  passthru.tests.version = testers.testVersion { package = finalAttrs.finalPackage; };
 
   meta = with lib; {
     homepage = "https://jb55.com/datefmt";
@@ -21,4 +21,4 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ jb55 ];
     mainProgram = "datefmt";
   };
-}
+})