diff --git a/3rdparty/ext_pyqt/CMakeLists.txt b/3rdparty/ext_pyqt/CMakeLists.txt
index 1e30662b1b..e170f5528c 100644
--- a/3rdparty/ext_pyqt/CMakeLists.txt
+++ b/3rdparty/ext_pyqt/CMakeLists.txt
@@ -1,53 +1,54 @@
 SET(PREFIX_ext_pyqt "${EXTPREFIX}" )
 if (UNIX)
     SET(PYTHON_EXECUTABLE_PATH ${PREFIX_ext_sip}/bin/python3)
     if(NOT EXISTS ${PYTHON_EXECUTABLE_PATH})
       message("WARNING: using system python3!")
       SET(PYTHON_EXECUTABLE_PATH python3)
     endif()
     ExternalProject_Add( ext_pyqt
         DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
         URL https://www.riverbankcomputing.com/static/Downloads/PyQt5/PyQt5_gpl-5.12.zip
         URL_MD5 102062aff7435c03114e02c456dfd01f
         
         CONFIGURE_COMMAND ${PYTHON_EXECUTABLE_PATH} <SOURCE_DIR>/configure.py --confirm-license --qmake ${PREFIX_ext_pyqt}/bin/qmake --sip ${PREFIX_ext_pyqt}/bin/sip --sip-incdir ${PREFIX_ext_pyqt}/include --sipdir ${PREFIX_ext_pyqt}/share/sip
         BUILD_COMMAND make
         INSTALL_COMMAND make install
         
         BUILD_IN_SOURCE 1
 
         UPDATE_COMMAND ""
     )
 elseif(MINGW)
+
     list(APPEND _PYQT_conf
         --confirm-license
         --target-py-version 3.6
         --bindir ${PREFIX_ext_pyqt}/bin
         --qt ${PREFIX_ext_pyqt}
         --sip ${PREFIX_ext_pyqt}/bin/sip.exe
         --sip-incdir ${PREFIX_ext_pyqt}/include
         --spec win32-g++
         --verbose
         --sipdir ${PREFIX_ext_pyqt}/share/sip
         --destdir ${PREFIX_ext_pyqt}/lib/krita-python-libs
         --stubsdir ${PREFIX_ext_pyqt}/lib/krita-python-libs/PyQt5
         --no-qml-plugin --no-python-dbus --no-qsci-api --no-tools
-        --disable QtSql --disable QtTest --disable QtWinExtras
+        --disable QtSql --disable QtTest --disable QtWinExtras --disable QtHelp
     )
     ExternalProject_Add( ext_pyqt
         DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
         URL https://www.riverbankcomputing.com/static/Downloads/PyQt5/PyQt5_gpl-5.12.tar.gz
         URL_MD5 757161fc19a2da788962fbc5d18480c0
         PATCH_COMMAND  ${PATCH_COMMAND} -p1 -i ${CMAKE_CURRENT_SOURCE_DIR}/pyqt-configure-fix.patch
 
         CONFIGURE_COMMAND ${PYTHON_EXECUTABLE} <SOURCE_DIR>/configure.py ${_PYQT_conf}
         BUILD_COMMAND mingw32-make -j${SUBMAKE_JOBS} CXXFLAGS=-D_hypot=hypot LDFLAGS=${SECURITY_SHARED_LINKER_FLAGS}
-        INSTALL_COMMAND mingw32-make -j${SUBMAKE_JOBS} install
+        INSTALL_COMMAND mingw32-make install
         
         BUILD_IN_SOURCE 1
 
         UPDATE_COMMAND ""
     )
 
 endif()