diff --git a/pkgs/by-name/ot/otus-lisp/package.nix b/pkgs/by-name/ot/otus-lisp/package.nix
index e122b601b71a..ba51c417fdb8 100644
--- a/pkgs/by-name/ot/otus-lisp/package.nix
+++ b/pkgs/by-name/ot/otus-lisp/package.nix
@@ -1,14 +1,14 @@
 { lib, stdenv, fetchFromGitHub, xxd }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "otus-lisp";
   version = "2.5";
 
   src = fetchFromGitHub {
     owner = "yuriy-chumak";
     repo = "ol";
-    rev = version;
-    sha256 = "sha256-xwn2cvtw3co7MJ4J0FraEtZhKWVaaaoJYMrohyFF+us=";
+    rev = finalAttrs.version;
+    hash = "sha256-xwn2cvtw3co7MJ4J0FraEtZhKWVaaaoJYMrohyFF+us=";
   };
 
   nativeBuildInputs = [ xxd ];
@@ -23,4 +23,4 @@ stdenv.mkDerivation rec {
     maintainers = with lib.maintainers; [ nagy ];
     mainProgram = "ol";
   };
-}
+})