diff --git a/examples/caldavresource/CMakeLists.txt b/examples/caldavresource/CMakeLists.txt
index 314a8f59..353f0d7b 100644
--- a/examples/caldavresource/CMakeLists.txt
+++ b/examples/caldavresource/CMakeLists.txt
@@ -1,15 +1,14 @@
 project(sink_resource_caldav)
 
-add_definitions(-DQT_PLUGIN)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 find_package(KPimKDAV2 REQUIRED)
 find_package(KF5CalendarCore REQUIRED)
 
 add_library(${PROJECT_NAME} SHARED caldavresource.cpp)
 target_link_libraries(${PROJECT_NAME} sink_webdav_common sink Qt5::Core Qt5::Network KPim::KDAV2
 	KF5::CalendarCore)
 
 install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION ${SINK_RESOURCE_PLUGINS_PATH} RUNTIME DESTINATION ${SINK_RESOURCE_PLUGINS_PATH})
 
 add_subdirectory(tests)
diff --git a/examples/carddavresource/CMakeLists.txt b/examples/carddavresource/CMakeLists.txt
index cca7ea7c..0db0e1ad 100644
--- a/examples/carddavresource/CMakeLists.txt
+++ b/examples/carddavresource/CMakeLists.txt
@@ -1,13 +1,12 @@
 project(sink_resource_carddav)
 
-add_definitions(-DQT_PLUGIN)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 find_package(KPimKDAV2 REQUIRED)
 
 add_library(${PROJECT_NAME} SHARED carddavresource.cpp)
 target_link_libraries(${PROJECT_NAME} sink_webdav_common sink Qt5::Core Qt5::Network KPim::KDAV2)
 
 install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION ${SINK_RESOURCE_PLUGINS_PATH} RUNTIME DESTINATION ${SINK_RESOURCE_PLUGINS_PATH})
 
 add_subdirectory(tests)
diff --git a/examples/dummyresource/CMakeLists.txt b/examples/dummyresource/CMakeLists.txt
index 78c84f8b..9f15e583 100644
--- a/examples/dummyresource/CMakeLists.txt
+++ b/examples/dummyresource/CMakeLists.txt
@@ -1,11 +1,10 @@
 project(sink_resource_dummy)
 
-add_definitions(-DQT_PLUGIN)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 
 add_library(${PROJECT_NAME} SHARED resourcefactory.cpp domainadaptor.cpp dummystore.cpp)
 generate_flatbuffers(${PROJECT_NAME} dummycalendar)
 target_link_libraries(${PROJECT_NAME} sink Qt5::Core Qt5::Network)
 
 install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION ${SINK_RESOURCE_PLUGINS_PATH} RUNTIME DESTINATION ${SINK_RESOURCE_PLUGINS_PATH})
diff --git a/examples/imapresource/CMakeLists.txt b/examples/imapresource/CMakeLists.txt
index 290a4876..61b86ed4 100644
--- a/examples/imapresource/CMakeLists.txt
+++ b/examples/imapresource/CMakeLists.txt
@@ -1,16 +1,15 @@
 project(sink_resource_imap)
 
-add_definitions(-DQT_PLUGIN)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 find_package(KF5 COMPONENTS REQUIRED Mime)
 find_package(KIMAP2 0.2 REQUIRED)
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 add_library(${PROJECT_NAME} SHARED imapresource.cpp imapserverproxy.cpp)
 target_link_libraries(${PROJECT_NAME} sink Qt5::Core Qt5::Network KF5::Mime KIMAP2)
 
 install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION ${SINK_RESOURCE_PLUGINS_PATH} RUNTIME DESTINATION ${SINK_RESOURCE_PLUGINS_PATH})
 
 add_subdirectory(tests)
diff --git a/examples/maildirresource/CMakeLists.txt b/examples/maildirresource/CMakeLists.txt
index b1c64898..94910cbb 100644
--- a/examples/maildirresource/CMakeLists.txt
+++ b/examples/maildirresource/CMakeLists.txt
@@ -1,15 +1,14 @@
 project(sink_resource_maildir)
 
-add_definitions(-DQT_PLUGIN)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 find_package(KF5 COMPONENTS REQUIRED Mime)
 
 add_library(${PROJECT_NAME} SHARED facade.cpp maildirresource.cpp libmaildir/maildir.cpp libmaildir/keycache.cpp)
 target_link_libraries(${PROJECT_NAME} sink Qt5::Core Qt5::Network KF5::Mime)
 
 install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION ${SINK_RESOURCE_PLUGINS_PATH} RUNTIME DESTINATION ${SINK_RESOURCE_PLUGINS_PATH})
 
 add_definitions(-DTESTDATAPATH="${CMAKE_CURRENT_SOURCE_DIR}/tests/data")
 
 add_subdirectory(tests)
diff --git a/examples/mailtransportresource/CMakeLists.txt b/examples/mailtransportresource/CMakeLists.txt
index 56ba9e74..fe2e77c6 100644
--- a/examples/mailtransportresource/CMakeLists.txt
+++ b/examples/mailtransportresource/CMakeLists.txt
@@ -1,32 +1,31 @@
 project(sink_resource_mailtransport)
 
-add_definitions(-DQT_PLUGIN)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 find_package(KF5 COMPONENTS REQUIRED Mime)
 find_package(CURL 7.20.0 REQUIRED)
 
 include_directories(${CURL_INCLUDE_DIRS})
 
 
 add_library(${PROJECT_NAME} SHARED mailtransportresource.cpp mailtransport.cpp)
 target_link_libraries(${PROJECT_NAME}
     sink
     Qt5::Core
     Qt5::Network
     KF5::Mime
     ${CURL_LIBRARIES}
 )
 install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION ${SINK_RESOURCE_PLUGINS_PATH} RUNTIME DESTINATION ${SINK_RESOURCE_PLUGINS_PATH})
 
 add_executable(sink_smtp_test smtptest.cpp mailtransport.cpp)
 target_link_libraries(sink_smtp_test
     sink
     Qt5::Core
     Qt5::Network
     KF5::Mime
     ${CURL_LIBRARIES}
 )
 install(TARGETS sink_smtp_test ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 
 add_subdirectory(tests)