diff --git a/pkgs/by-name/lp/lp_solve/package.nix b/pkgs/by-name/lp/lp_solve/package.nix
index 195c3ac3bcd8..cadd82feb7f0 100644
--- a/pkgs/by-name/lp/lp_solve/package.nix
+++ b/pkgs/by-name/lp/lp_solve/package.nix
@@ -10,13 +10,13 @@
   binutils,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "lp_solve";
   version = "5.5.2.11";
 
   src = fetchurl {
-    url = "mirror://sourceforge/project/lpsolve/lpsolve/${version}/lp_solve_${version}_source.tar.gz";
-    sha256 = "sha256-bUq/9cxqqpM66ObBeiJt8PwLZxxDj2lxXUHQn+gfkC8=";
+    url = "mirror://sourceforge/project/lpsolve/lpsolve/${finalAttrs.version}/lp_solve_${finalAttrs.version}_source.tar.gz";
+    hash = "sha256-bUq/9cxqqpM66ObBeiJt8PwLZxxDj2lxXUHQn+gfkC8=";
   };
 
   nativeBuildInputs =
@@ -81,4 +81,4 @@ stdenv.mkDerivation rec {
     maintainers = [ ];
     platforms = lib.platforms.unix;
   };
-}
+})