1 files changed, 8 insertions, 7 deletions
diff --git a/isabelle-nix-fhsenv/default.nix b/isabelle-nix-fhsenv/default.nix
index dd4c7f8..a6fabc7 100644
--- a/isabelle-nix-fhsenv/default.nix
+++ b/isabelle-nix-fhsenv/default.nix
@@ -4,7 +4,7 @@ with pkgs;
 let
   isabelle2021_1 = stdenv.mkDerivation {
     pname = "isabelle-unpatched";
-    version = "2021";
+    version = "2021-1";
 
     src = fetchzip {
       url = "https://isabelle.in.tum.de/dist/Isabelle2021-1_linux.tar.gz";
@@ -19,7 +19,7 @@ let
   };
   isabelle2022 = stdenv.mkDerivation {
     pname = "isabelle-unpatched";
-    version = "2021";
+    version = "2022";
 
     src = fetchzip {
       url = "https://isabelle.in.tum.de/dist/Isabelle2022_linux.tar.gz";
@@ -32,8 +32,8 @@ let
       cp -r $src/* $out
     '';
   };
-  mkEnv = isabelle: buildFHSUserEnv {
-    name = "isabelle";
+  mkEnv = name: isabelle: buildFHSUserEnv {
+    inherit name;
     targetPkgs = pkgs: with pkgs; [
       dbus expat file fontconfig freetype gdb glib 
       gmp
@@ -42,9 +42,10 @@ let
       xorg.libXext xorg.libXfixes xorg.libXi xorg.libXrandr xorg.libXrender
       xorg.libXtst xorg.libxcb xorg.xcbutilkeysyms zlib
     ];
-    runScript = "${isabelle.outPath}/bin/isabelle";
+    runScript = isabelle;
   };
 in {
-  isabelle2021_1 = mkEnv isabelle2021_1;
-  isabelle2022 = mkEnv isabelle2022;
+  isabelle2021_1 = mkEnv "isabelle" "${isabelle2021_1}/bin/isabelle";
+  isabelle2022 = mkEnv "isabelle" "${isabelle2022}/bin/isabelle";
+  inherit mkEnv;
 }