diff --git a/pkgs/by-name/co/collabora-online/add-missing-poco-includes.patch b/pkgs/by-name/co/collabora-online/add-missing-poco-includes.patch
new file mode 100644
index 0000000000000..f1e79aea02b51
--- /dev/null
+++ b/pkgs/by-name/co/collabora-online/add-missing-poco-includes.patch
@@ -0,0 +1,17 @@
+diff --git a/common/JsonUtil.hpp b/common/JsonUtil.hpp
+index 564812e0e6..b7eb8fe0b4 100644
+--- a/common/JsonUtil.hpp
++++ b/common/JsonUtil.hpp
+@@ -23,6 +23,7 @@
+ #include <Poco/Dynamic/Var.h>
+ #include <Poco/JSON/Object.h>
+ #include <Poco/JSON/Parser.h>
++#include <Poco/JSON/JSONException.h>
+
+ namespace JsonUtil
+ {
+@@ -248,4 +249,3 @@ inline std::string escapeJSONValue(std::string val)
+ } // end namespace JsonUtil
+
+ /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
+-
diff --git a/pkgs/by-name/co/collabora-online/package.nix b/pkgs/by-name/co/collabora-online/package.nix
index 62c33c455c327..1d867eb6f3ffb 100644
--- a/pkgs/by-name/co/collabora-online/package.nix
+++ b/pkgs/by-name/co/collabora-online/package.nix
@@ -63,7 +63,12 @@ stdenv.mkDerivation (finalAttrs: {
     "--with-lokit-path=${libreoffice-collabora.src}/include"
   ];
 
-  patches = [ ./fix-file-server-regex.patch ];
+  patches = [
+    ./fix-file-server-regex.patch
+    # Work around missing includes in upstream
+    # https://github.com/CollaboraOnline/online/issues/11175
+    ./add-missing-poco-includes.patch
+  ];
 
   postPatch = ''
     cp ${./package-lock.json} ${finalAttrs.npmRoot}/package-lock.json
diff --git a/pkgs/by-name/cr/craftos-pc/fix-poco-header-includes.patch b/pkgs/by-name/cr/craftos-pc/fix-poco-header-includes.patch
new file mode 100644
index 0000000000000..6eba17581e0ba
--- /dev/null
+++ b/pkgs/by-name/cr/craftos-pc/fix-poco-header-includes.patch
@@ -0,0 +1,37 @@
+diff --git a/src/configuration.cpp b/src/configuration.cpp
+index 2196121..0c5cf27 100644
+--- a/src/configuration.cpp
++++ b/src/configuration.cpp
+@@ -11,6 +11,7 @@
+ #include <fstream>
+ #include <unordered_map>
+ #include <configuration.hpp>
++#include <Poco/JSON/JSONException.h>
+ #include "platform.hpp"
+ #include "runtime.hpp"
+ #include "terminal/SDLTerminal.hpp"
+diff --git a/src/main.cpp b/src/main.cpp
+index 9ab0814..38976a2 100644
+--- a/src/main.cpp
++++ b/src/main.cpp
+@@ -34,6 +34,7 @@ static void* releaseNotesThread(void* data);
+ #include <Poco/URI.h>
+ #include <Poco/Checksum.h>
+ #include <Poco/JSON/Parser.h>
++#include <Poco/JSON/JSONException.h>
+ #ifndef __EMSCRIPTEN__
+ #include <Poco/Net/HTTPSClientSession.h>
+ #include <Poco/Net/HTTPRequest.h>
+diff --git a/src/util.hpp b/src/util.hpp
+index b8ab2d1..c643b96 100644
+--- a/src/util.hpp
++++ b/src/util.hpp
+@@ -21,6 +21,8 @@ extern "C" {
+ #include <string>
+ #include <vector>
+ #include <Poco/JSON/JSON.h>
++#include <Poco/JSON/Object.h>
++#include <Poco/JSON/Array.h>
+ #include <Poco/JSON/Parser.h>
+ #include <Poco/Net/HTTPResponse.h>
+ #include <Computer.hpp>
diff --git a/pkgs/by-name/cr/craftos-pc/package.nix b/pkgs/by-name/cr/craftos-pc/package.nix
index 535b50b0f138b..f9774c9f20863 100644
--- a/pkgs/by-name/cr/craftos-pc/package.nix
+++ b/pkgs/by-name/cr/craftos-pc/package.nix
@@ -1,17 +1,18 @@
-{ lib
-, stdenv
-, fetchFromGitHub
-, callPackage
-, patchelf
-, unzip
-, poco
-, openssl
-, SDL2
-, SDL2_mixer
-, ncurses
-, libpng
-, pngpp
-, libwebp
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  callPackage,
+  patchelf,
+  unzip,
+  poco,
+  openssl,
+  SDL2,
+  SDL2_mixer,
+  ncurses,
+  libpng,
+  pngpp,
+  libwebp,
 }:
 
 let
@@ -41,8 +42,20 @@ stdenv.mkDerivation rec {
     hash = "sha256-DbxAsXxpsa42dF6DaLmgIa+Hs/PPqJ4dE97PoKxG2Ig=";
   };
 
-  nativeBuildInputs = [ patchelf unzip ];
-  buildInputs = [ poco openssl SDL2 SDL2_mixer ncurses libpng pngpp libwebp ];
+  nativeBuildInputs = [
+    patchelf
+    unzip
+  ];
+  buildInputs = [
+    poco
+    openssl
+    SDL2
+    SDL2_mixer
+    ncurses
+    libpng
+    pngpp
+    libwebp
+  ];
   strictDeps = true;
 
   preBuild = ''
@@ -57,6 +70,12 @@ stdenv.mkDerivation rec {
     runHook postBuild
   '';
 
+  patches = [
+    # fix includes of poco headers
+    # https://github.com/trofi/nixpkgs/pull/5
+    ./fix-poco-header-includes.patch
+  ];
+
   dontStrip = true;
 
   installPhase = ''
@@ -87,9 +106,15 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Implementation of the CraftOS-PC API written in C++ using SDL";
     homepage = "https://www.craftos-pc.cc";
-    license = with licenses; [ mit free ];
+    license = with licenses; [
+      mit
+      free
+    ];
     platforms = platforms.linux;
-    maintainers = with maintainers; [ siraben tomodachi94 ];
+    maintainers = with maintainers; [
+      siraben
+      tomodachi94
+    ];
     mainProgram = "craftos";
   };
 }
diff --git a/pkgs/by-name/po/poco/disable-internal-pcre-files-for-non-static-builds.patch b/pkgs/by-name/po/poco/disable-internal-pcre-files-for-static-builds.patch
similarity index 100%
rename from pkgs/by-name/po/poco/disable-internal-pcre-files-for-non-static-builds.patch
rename to pkgs/by-name/po/poco/disable-internal-pcre-files-for-static-builds.patch
diff --git a/pkgs/by-name/po/poco/package.nix b/pkgs/by-name/po/poco/package.nix
index ba4777666ec89..3f1c71b535149 100644
--- a/pkgs/by-name/po/poco/package.nix
+++ b/pkgs/by-name/po/poco/package.nix
@@ -36,6 +36,7 @@ stdenv.mkDerivation rec {
     utf8proc
     libmysqlclient
   ];
+
   propagatedBuildInputs = [
     zlib
     pcre2
@@ -58,9 +59,9 @@ stdenv.mkDerivation rec {
   ];
 
   patches = [
-    # poco builds its own version of pcre, disable it
+    # poco builds its own version of pcre, disable it for static builds
     # https://github.com/pocoproject/poco/issues/4871
-    ./disable-internal-pcre-files-for-non-static-builds.patch
+    ./disable-internal-pcre-files-for-static-builds.patch
   ];
 
   postFixup = ''