diff --git a/pkgs/games/dwarf-fortress/dwarf-therapist/default.nix b/pkgs/games/dwarf-fortress/dwarf-therapist/default.nix
index 6c094ff20f81..37eab6d077a3 100644
--- a/pkgs/games/dwarf-fortress/dwarf-therapist/default.nix
+++ b/pkgs/games/dwarf-fortress/dwarf-therapist/default.nix
@@ -1,10 +1,8 @@
 { stdenv, fetchFromGitHub, coreutils, qtbase, qtdeclarative, qmakeHook, texlive }:
 
-let
-  version = "37.0.0";
-in
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   name = "dwarf-therapist-original-${version}";
+  version = "37.0.0";
 
   src = fetchFromGitHub {
     owner = "splintermind";
diff --git a/pkgs/games/dwarf-fortress/dwarf-therapist/wrapper.nix b/pkgs/games/dwarf-fortress/dwarf-therapist/wrapper.nix
index a16c1284a672..cbc8d31e6750 100644
--- a/pkgs/games/dwarf-fortress/dwarf-therapist/wrapper.nix
+++ b/pkgs/games/dwarf-fortress/dwarf-therapist/wrapper.nix
@@ -1,4 +1,4 @@
-{ buildEnv, lib, dwarf-therapist-original, dwarf-fortress-original, makeWrapper }:
+{ symlinkJoin, lib, dwarf-therapist-original, dwarf-fortress-original, makeWrapper }:
 
 let
   df = dwarf-fortress-original;
@@ -6,8 +6,8 @@ let
   inifile = "linux/v0${df.baseVersion}.${df.patchVersion}.ini";
   dfHashFile = "${df}/hash.md5";
 
-in buildEnv {
-  name = "dwarf-therapist-${lib.getVersion dt}";
+in symlinkJoin {
+  name = "dwarf-therapist-${dt.version}";
 
   paths = [ dt ];
 
@@ -16,22 +16,10 @@ in buildEnv {
   postBuild = ''
     # DwarfTherapist assumes it's run in $out/share/dwarftherapist and
     # therefore uses many relative paths.
-    rm $out/bin
-    mkdir $out/bin
-    makeWrapper ${dt}/bin/DwarfTherapist $out/bin/DwarfTherapist \
+    wrapProgram $out/bin/DwarfTherapist \
       --run "cd $out/share/dwarftherapist"
 
-    # Fix checksum of memory access directives. We really need #4621 fixed!
-    recreate_dir() {
-      rm "$out/$1"
-      mkdir -p "$out/$1"
-      for i in "${dt}/$1/"*; do
-        ln -s "$i" "$out/$1"
-      done
-    }
-
-    recreate_dir share
-    recreate_dir share/dwarftherapist
+    rm -rf $out/share/dwarftherapist/memory_layouts/linux
     mkdir -p $out/share/dwarftherapist/memory_layouts/linux
     origmd5=$(cat "${dfHashFile}.orig" | cut -c1-8)
     patchedmd5=$(cat "${dfHashFile}" | cut -c1-8)