--- a/src/assistant/qlitehtml/src/CMakeLists.txt
+++ b/src/assistant/qlitehtml/src/CMakeLists.txt
@@ -15,45 +15,11 @@
 set(QLITEHTML_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
 set(QLITEHTML_VERSION_COMPAT ${QLITEHTML_VERSION} CACHE STRING "qlitehtml compat version number.")
 
-find_package(litehtml QUIET)
-if(NOT TARGET litehtml AND EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/litehtml/CMakeLists.txt)
-    set(ORIG_FPIC ${CMAKE_POSITION_INDEPENDENT_CODE})
-    set(ORIG_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})
-    if (WIN32)
-      set(LITEHTML_UTF8 ON CACHE BOOL "")
-    endif()
-    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-    set(BUILD_SHARED_LIBS OFF)
-
-    add_subdirectory(3rdparty/litehtml EXCLUDE_FROM_ALL)
-
-    # suppress compiler warnings from litehtml
-    set_target_properties(
-      litehtml
-      PROPERTIES
-        QT_COMPILE_OPTIONS_DISABLE_WARNINGS ON
-    )
-    set_target_properties(
-      gumbo
-      PROPERTIES
-        QT_COMPILE_OPTIONS_DISABLE_WARNINGS ON
-    )
-
-    set(CMAKE_POSITION_INDEPENDENT_CODE "${ORIG_FPIC}")
-    set(BUILD_SHARED_LIBS ${ORIG_BUILD_SHARED_LIBS})
-    # force optimized litehtml even in debug
-    if (CMAKE_BUILD_TYPE STREQUAL "Debug")
-      # except for windows
-      if (NOT WIN32)
-        target_compile_options(gumbo PRIVATE -O2)
-        target_compile_options(litehtml PRIVATE -O2)
-      endif()
-    endif()
-endif()
+find_package(litehtml CONFIG REQUIRED)
 
 # TODO error if litehtml was not found?
 
-if(TARGET litehtml)
+
   set(PUBLIC_HEADERS
       container_qpainter.h
       container_qpainter_p.h
@@ -155,5 +121,3 @@
         ${_DEVEL_COMPONENT}
         OPTIONAL)
   endif()
-
-endif()
diff --git a/src/assistant/CMakeLists.txt b/src/assistant/CMakeLists.txt
index 5d2bf2b67c..abd9b513d3 100644
--- a/src/assistant/CMakeLists.txt
+++ b/src/assistant/CMakeLists.txt
@@ -34,7 +34,7 @@ if(TARGET qlitehtml)
     # but found in the system, because they are imported only to the subdirectory scope
     # where find_package was called. But that's fine, we wouldn't be able to set compiler flags
     # on them anyway.
-    if(TARGET litehtml)
+    if(0)
         qt_internal_set_exceptions_flags(litehtml OFF)
         qt_disable_warnings(litehtml)
     endif()