diff --git a/nixos/doc/manual/default.nix b/nixos/doc/manual/default.nix
index cc28fe6d16ca..ef7803fb75b0 100644
--- a/nixos/doc/manual/default.nix
+++ b/nixos/doc/manual/default.nix
@@ -198,7 +198,7 @@ let
     '';
 
 in rec {
-  inherit (optionsDoc) optionsJSON optionsNix optionsDocBook optionsUsedDocbook;
+  inherit (optionsDoc) optionsJSON optionsNix optionsDocBook;
 
   # Generate the NixOS manual.
   manualHTML = runCommand "nixos-manual-html"
diff --git a/nixos/lib/make-options-doc/default.nix b/nixos/lib/make-options-doc/default.nix
index 26819597a1f9..99515b5b8276 100644
--- a/nixos/lib/make-options-doc/default.nix
+++ b/nixos/lib/make-options-doc/default.nix
@@ -157,26 +157,19 @@ in rec {
       echo "file json-br $dst/options.json.br" >> $out/nix-support/hydra-build-products
     '';
 
-  optionsUsedDocbook = pkgs.runCommand "options-used-docbook" {} ''
-    if [ -e ${optionsJSON}/share/doc/nixos/.used-docbook ]; then
-      echo 1
-    else
-      echo 0
-    fi >"$out"
-  '';
-
-  optionsDocBook = pkgs.runCommand "options-docbook.xml" {
-    nativeBuildInputs = [
-      pkgs.nixos-render-docs
-    ];
-  } ''
-    nixos-render-docs -j $NIX_BUILD_CORES options docbook \
-      --manpage-urls ${pkgs.path + "/doc/manpage-urls.json"} \
-      --revision ${lib.escapeShellArg revision} \
-      --document-type ${lib.escapeShellArg documentType} \
-      --varlist-id ${lib.escapeShellArg variablelistId} \
-      --id-prefix ${lib.escapeShellArg optionIdPrefix} \
-      ${optionsJSON}/share/doc/nixos/options.json \
-      "$out"
-  '';
+  optionsDocBook = lib.warn "optionsDocBook is deprecated since 23.11 and will be removed in 24.05"
+    (pkgs.runCommand "options-docbook.xml" {
+      nativeBuildInputs = [
+        pkgs.nixos-render-docs
+      ];
+    } ''
+      nixos-render-docs -j $NIX_BUILD_CORES options docbook \
+        --manpage-urls ${pkgs.path + "/doc/manpage-urls.json"} \
+        --revision ${lib.escapeShellArg revision} \
+        --document-type ${lib.escapeShellArg documentType} \
+        --varlist-id ${lib.escapeShellArg variablelistId} \
+        --id-prefix ${lib.escapeShellArg optionIdPrefix} \
+        ${optionsJSON}/share/doc/nixos/options.json \
+        "$out"
+    '');
 }
diff --git a/nixos/modules/misc/documentation.nix b/nixos/modules/misc/documentation.nix
index e6a56a8cdf28..820450e3ce2a 100644
--- a/nixos/modules/misc/documentation.nix
+++ b/nixos/modules/misc/documentation.nix
@@ -345,14 +345,6 @@ in
     (mkIf cfg.nixos.enable {
       system.build.manual = manual;
 
-      system.activationScripts.check-manual-docbook = ''
-        if [[ $(cat ${manual.optionsUsedDocbook}) = 1 ]]; then
-          echo -e "\e[31;1mwarning\e[0m: This configuration contains option documentation in docbook." \
-                  "Support for docbook is deprecated and will be removed after NixOS 23.05." \
-                  "See nix-store --read-log ${builtins.unsafeDiscardStringContext manual.optionsJSON.drvPath}"
-        fi
-      '';
-
       environment.systemPackages = []
         ++ optional cfg.man.enable manual.manpages
         ++ optionals cfg.doc.enable [ manual.manualHTML nixos-help ];