diff --git a/pkgs/development/libraries/qt-5/modules/qttools-QT_HOST_DATA-refs.patch b/pkgs/development/libraries/qt-5/modules/qttools-QT_HOST_DATA-refs.patch
index dba4c5533fb7..6247cc971b0f 100644
--- a/pkgs/development/libraries/qt-5/modules/qttools-QT_HOST_DATA-refs.patch
+++ b/pkgs/development/libraries/qt-5/modules/qttools-QT_HOST_DATA-refs.patch
@@ -1,12 +1,13 @@
-From 985a5b530e27372a0766ce897c621026928abfbb Mon Sep 17 00:00:00 2001
+From b54dd2923448f2ae7402cf2364f40337d6c3cb6d Mon Sep 17 00:00:00 2001
 From: OPNA2608 <opna2608@protonmail.com>
-Date: Wed, 7 Aug 2024 22:16:42 +0200
+Date: Wed, 7 Aug 2024 22:47:00 +0200
 Subject: [PATCH] Patch QT_HOST_DATA references
 
 ---
  src/linguist/linguist.pro                           | 2 +-
+ src/qdoc/qdoc.pro                                   | 2 +-
  src/qtattributionsscanner/qtattributionsscanner.pro | 2 +-
- 2 files changed, 2 insertions(+), 2 deletions(-)
+ 3 files changed, 3 insertions(+), 3 deletions(-)
 
 diff --git a/src/linguist/linguist.pro b/src/linguist/linguist.pro
 index 7638c7710..bd8798818 100644
@@ -21,6 +22,19 @@ index 7638c7710..bd8798818 100644
  cmake_linguist_macros_file.input = $$PWD/Qt5LinguistToolsMacros.cmake
  CMAKE_PACKAGE_VERSION = $$MODULE_VERSION
  cmake_linguist_config_file.output = $$MODULE_BASE_OUTDIR/lib/cmake/Qt5LinguistTools/Qt5LinguistToolsConfig.cmake
+diff --git a/src/qdoc/qdoc.pro b/src/qdoc/qdoc.pro
+index db4b25cf1..19592d50b 100644
+--- a/src/qdoc/qdoc.pro
++++ b/src/qdoc/qdoc.pro
+@@ -151,7 +151,7 @@ load(qt_build_paths)
+ equals(QMAKE_HOST.os, Windows): CMAKE_BIN_SUFFIX = ".exe"
+ 
+ cmake_qdoc_config_file.input = $$PWD/Qt5DocToolsConfig.cmake.in
+-cmake_qdoc_config_version_file.input = $$[QT_HOST_DATA/src]/mkspecs/features/data/cmake/Qt5ConfigVersion.cmake.in
++cmake_qdoc_config_version_file.input = @qtbaseDev@/mkspecs/features/data/cmake/Qt5ConfigVersion.cmake.in
+ CMAKE_PACKAGE_VERSION = $$MODULE_VERSION
+ cmake_qdoc_config_file.output = $$MODULE_BASE_OUTDIR/lib/cmake/Qt5DocTools/Qt5DocToolsConfig.cmake
+ cmake_qdoc_config_version_file.output = $$MODULE_BASE_OUTDIR/lib/cmake/Qt5DocTools/Qt5DocToolsConfigVersion.cmake
 diff --git a/src/qtattributionsscanner/qtattributionsscanner.pro b/src/qtattributionsscanner/qtattributionsscanner.pro
 index d645a22a9..5d4239f83 100644
 --- a/src/qtattributionsscanner/qtattributionsscanner.pro
diff --git a/pkgs/development/libraries/qt-5/modules/qttools-libclang-main-header.patch b/pkgs/development/libraries/qt-5/modules/qttools-libclang-main-header.patch
new file mode 100644
index 000000000000..2f042d69c666
--- /dev/null
+++ b/pkgs/development/libraries/qt-5/modules/qttools-libclang-main-header.patch
@@ -0,0 +1,34 @@
+From a1fb301a0b9b59f420454be1ebeb05ce0547da2c Mon Sep 17 00:00:00 2001
+From: OPNA2608 <opna2608@protonmail.com>
+Date: Fri, 6 Sep 2024 14:20:05 +0200
+Subject: [PATCH] Patch includedir for libclang main header
+
+---
+ src/qdoc/configure.pri | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/qdoc/configure.pri b/src/qdoc/configure.pri
+index 4f3d77603..8fe8bc439 100644
+--- a/src/qdoc/configure.pri
++++ b/src/qdoc/configure.pri
+@@ -71,7 +71,7 @@ defineTest(qtConfTest_libclang) {
+             LLVM_INSTALL_DIR = $$system("$$candidate --prefix 2>$$QMAKE_SYSTEM_NULL_DEVICE")
+             !isEmpty(LLVM_INSTALL_DIR) {
+                 CLANG_INCLUDEPATH = $$system("$$candidate --includedir 2>/dev/null")
+-                LIBCLANG_MAIN_HEADER = $$CLANG_INCLUDEPATH/clang-c/Index.h
++                LIBCLANG_MAIN_HEADER = @libclangDev@/include/clang-c/Index.h
+                 !exists($$LIBCLANG_MAIN_HEADER) {
+                     !isEmpty(LLVM_INSTALL_DIR): \
+                         qtLog("Cannot find libclang's main header file, candidate: $${LIBCLANG_MAIN_HEADER}.")
+@@ -121,7 +121,7 @@ defineTest(qtConfTest_libclang) {
+         return(false)
+     }
+ 
+-    LIBCLANG_MAIN_HEADER = $$CLANG_INCLUDEPATH/clang-c/Index.h
++    LIBCLANG_MAIN_HEADER = @libclangDev@/include/clang-c/Index.h
+     !exists($$LIBCLANG_MAIN_HEADER) {
+         !isEmpty(LLVM_INSTALL_DIR): \
+             qtLog("Cannot find libclang's main header file, candidate: $${LIBCLANG_MAIN_HEADER}.")
+-- 
+2.44.1
+
diff --git a/pkgs/development/libraries/qt-5/modules/qttools.nix b/pkgs/development/libraries/qt-5/modules/qttools.nix
index 4554cb5cb3c9..d65c03cb4948 100644
--- a/pkgs/development/libraries/qt-5/modules/qttools.nix
+++ b/pkgs/development/libraries/qt-5/modules/qttools.nix
@@ -5,6 +5,7 @@
   qtbase,
   qtdeclarative,
   substituteAll,
+  llvmPackages,
 }:
 
 qtModule {
@@ -16,6 +17,11 @@ qtModule {
     "bin"
   ];
 
+  buildInputs = with llvmPackages; [
+    libclang
+    libllvm
+  ];
+
   propagatedBuildInputs = [
     qtbase
     qtdeclarative
@@ -27,6 +33,11 @@ qtModule {
       src = ./qttools-QT_HOST_DATA-refs.patch;
       qtbaseDev = lib.getDev qtbase;
     })
+
+    (substituteAll {
+      src = ./qttools-libclang-main-header.patch;
+      libclangDev = lib.getDev llvmPackages.libclang;
+    })
   ];
 
   devTools = [