diff --git a/pkgs/development/interpreters/bwbasic/default.nix b/pkgs/development/interpreters/bwbasic/default.nix
index 4eb5d7dd1312..1507881872a0 100644
--- a/pkgs/development/interpreters/bwbasic/default.nix
+++ b/pkgs/development/interpreters/bwbasic/default.nix
@@ -1,12 +1,12 @@
 { lib, gccStdenv, dos2unix, fetchurl, unzip }:
 
-gccStdenv.mkDerivation rec {
+gccStdenv.mkDerivation (finalAttrs: {
   pname = "bwbasic";
   version = "3.20";
 
   src = fetchurl {
-    url = "mirror://sourceforge/project/bwbasic/bwbasic/version%203.20/bwbasic-3.20.zip";
-    sha256 = "1w9r4cl7z1lh52c1jpjragbspi1qn0zb7jhcsldav4gdnzxfw67f";
+    url = "mirror://sourceforge/project/bwbasic/bwbasic/version%20${finalAttrs.version}/bwbasic-${finalAttrs.version}.zip";
+    hash = "sha256-7hju+rftka0a1QzKsz6wOMSr11NZXhmYKJCGfygjOfE=";
   };
 
   nativeBuildInputs = [ dos2unix unzip ];
@@ -27,12 +27,12 @@ gccStdenv.mkDerivation rec {
     mkdir -p $out/bin
   '';
 
-  meta = with lib; {
+  meta = {
     description = "Bywater BASIC Interpreter";
     mainProgram = "bwbasic";
-    license = licenses.gpl2Only;
-    maintainers = with maintainers; [ irenes ];
-    platforms = platforms.all;
+    license = lib.licenses.gpl2Only;
+    maintainers = with lib.maintainers; [ irenes ];
+    platforms = lib.platforms.all;
     homepage = "https://sourceforge.net/projects/bwbasic/";
   };
-}
+})