Aspell Dictionaries Not Found

I use aspell to check my spelling, usually via Emacs. However aspell cannot find any dictionary.

Test on the command line

➜  ~ aspell -d en_GB check b.txt
Error: The file "/nix/store/5y928vcyzhd5sb0kmsv8xma62dix7ldn-aspell-0.60.8/lib/aspell/en_GB" can not be opened for reading.

➜  ~ ls /nix/store/5y928vcyzhd5sb0kmsv8xma62dix7ldn-aspell-0.60.8/lib/aspell/en*
zsh: no matches found: /nix/store/5y928vcyzhd5sb0kmsv8xma62dix7ldn-aspell-0.60.8/lib/aspell/en*

However specifying the language works:
~ aspell --lang=en_GB check b.txt

Using plocate I can find the dictionary many times but in different Nix-Stores except in the one printed above:

➜  ~ plocate en_GB.multi
/nix/store/0yxkc5s9p704ngwg5jh2cwhm67yx6d63-system-path/lib/aspell/en_GB.multi
/nix/store/3vcfsjkk95gyc12zm1h7xsn9xanrggw6-system-path/lib/aspell/en_GB.multi
...
/nix/store/yazs8ww2knp87dqwlgvp4w7lj97dfbdk-system-path/lib/aspell/en_GB.multi
/nix/store/z4ld26r68yp71hv1x8k4yyr1sagkkdqw-system-path/lib/aspell/en_GB.multi

But since Emacs starts apsell with the option -d I would need this to work.

Has anyone an idea what is going wrong?

Aspell Installation
I installed aspell using

environment.systemPackages = with pkgs;
      [
        abcde
        appimage-run
        aspell
        aspellDicts.de
        aspellDicts.en
        aspellDicts.en-computers
        aspellDicts.en-science
        aspellDicts.es
        aspellDicts.fr
        aspellDicts.la
        clang
        ...
     ]

If I install apsell like this, it works:

environment.systemPackages = with pkgs;
      [
        abcde
        appimage-run
        (aspellWithDicts
          (dicts: with dicts; [ de en en-computers en-science es fr la ]))
        clang
        ...
      ]