diff --git a/autotests/CMakeLists.txt b/autotests/CMakeLists.txt
index 897ad6d..6126463 100644
--- a/autotests/CMakeLists.txt
+++ b/autotests/CMakeLists.txt
@@ -1,39 +1,41 @@
 find_package(Qt5Test ${REQUIRED_QT_VERSION} REQUIRED NO_MODULE)
 set_package_properties(Qt5Test PROPERTIES PURPOSE "Required for tests")
 
 include(ECMMarkAsTest)
 include(ECMAddTests)
 
 configure_file(config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h)
 
 MACRO(PLASMA_UNIT_TESTS)
        FOREACH(_testname ${ARGN})
                ecm_add_test(
                        plasmoidstructure.cpp ${_testname}.cpp ${CMAKE_CURRENT_SOURCE_DIR}/../src/kpackage/private/packages.cpp
                        LINK_LIBRARIES Qt5::Test KF5::Package KF5::Archive KF5::CoreAddons KF5::I18n
                        TEST_NAME ${_testname}
                        NAME_PREFIX "plasma-")
        ENDFOREACH(_testname)
 ENDMACRO(PLASMA_UNIT_TESTS)
 
 PLASMA_UNIT_TESTS(
     fallbackpackagetest
     packagestructuretest
     plasmoidpackagetest
     querytest
 )
 
+set_tests_properties(plasma-querytest PROPERTIES RUN_SERIAL TRUE) # it wipes out ~/.qttest/share
+
 function(kpackagetool5test testname)
     add_test(NAME ${testname}-appstream COMMAND cmake -Dkpackagetool=$<TARGET_FILE:kpackagetool5>
                                                       -Dgenerated=${CMAKE_CURRENT_BINARY_DIR}/${testname}.appdata.xml
                                                       -Dinput=${CMAKE_CURRENT_LIST_DIR}/data/${testname}/
                                                       -Doutput=${CMAKE_CURRENT_SOURCE_DIR}/data/${testname}/${testname}.testappdataxml
                                                       -P ${CMAKE_CURRENT_SOURCE_DIR}/kpackagetoolappstreamtest.cmake
     )
 endfunction()
 
 foreach(var "testfallbackpackage" "testpackage" "testpackage-nodisplay" "testjsonmetadatapackage" "testpackagesdep" "testpackagesdepinvalid") # "customcontent" "simplecontent"
     kpackagetool5test(${var})
 endforeach()
 
 add_subdirectory(mockdepresolver)