diff --git a/pkgs/by-name/de/devenv/package.nix b/pkgs/by-name/de/devenv/package.nix
index 1d9633ccf52e..6fe3cacc41ca 100644
--- a/pkgs/by-name/de/devenv/package.nix
+++ b/pkgs/by-name/de/devenv/package.nix
@@ -1,6 +1,7 @@
 {
   lib,
   fetchFromGitHub,
+  fetchpatch2,
   gitMinimal,
   makeBinaryWrapper,
   installShellFiles,
@@ -20,16 +21,27 @@ let
   devenvNixVersion = "2.30.4";
 
   devenv_nix =
+    let
+      components =
+        (nixVersions.nixComponents_git.override { version = devenvNixVersion; }).overrideSource
+          (fetchFromGitHub {
+            owner = "cachix";
+            repo = "nix";
+            rev = "devenv-${devenvNixVersion}";
+            hash = "sha256-3+GHIYGg4U9XKUN4rg473frIVNn8YD06bjwxKS1IPrU=";
+          });
+    in
     (
-      (nixVersions.nixComponents_git.override { version = devenvNixVersion; })
-      .nix-everything.overrideSource
-      (fetchFromGitHub {
-        owner = "cachix";
-        repo = "nix";
-        rev = "devenv-${devenvNixVersion}";
-        hash = "sha256-3+GHIYGg4U9XKUN4rg473frIVNn8YD06bjwxKS1IPrU=";
-      })
-    ).overrideAttrs
+      # Support for mdbook >= 0.5, https://github.com/NixOS/nix/issues/14628
+      components.appendPatches [
+        (fetchpatch2 {
+          name = "nix-2.30-14695-mdbook-0.5-support.patch";
+          url = "https://github.com/NixOS/nix/commit/5cbd7856de0a9c13351f98e32a1e26d0854d87fd.patch";
+          excludes = [ "doc/manual/package.nix" ];
+          hash = "sha256-GYaTOG9wZT9UI4G6za535PkLyjHKSxwBjJsXbjmI26g=";
+        })
+      ]
+    ).nix-everything.overrideAttrs
       (old: {
         pname = "devenv-nix";
         version = devenvNixVersion;