diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b6d73d9..4da146a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,95 +1,92 @@
 add_definitions(-DTRANSLATION_DOMAIN=\"libkalarmcal5\")
 ########### next target ###############
 set(kalarmcal_LIB_SRCS
     kacalendar.cpp
     karecurrence.cpp
     akonadi.cpp
     alarmtext.cpp
     identities.cpp
     kaevent.cpp
     kadatetime.cpp
     datetime.cpp
     repetition.cpp
     version.cpp
     collectionattribute.cpp
     compatibilityattribute.cpp
     eventattribute.cpp
 )
 
 ecm_qt_declare_logging_category(kalarmcal_LIB_SRCS HEADER kalarmcal_debug.h IDENTIFIER KALARMCAL_LOG CATEGORY_NAME org.kde.pim.kalarmcal
         DESCRIPTION "kalarmcal (kalarmcal)"
         OLD_CATEGORY_NAMES log_kalarmcal
         EXPORT KALARMCAL
     )
 
 
 add_library(KF5AlarmCalendar ${kalarmcal_LIB_SRCS})
 
 generate_export_header(KF5AlarmCalendar BASE_NAME kalarmcal)
 
 add_library(KF5::AlarmCalendar ALIAS KF5AlarmCalendar)
 
 target_link_libraries(KF5AlarmCalendar
 PUBLIC
                       KF5::ConfigCore
                       KF5::I18n
                       KF5::Holidays
                       KF5::IdentityManagement
                       KF5::CoreAddons
                       KF5::CalendarCore
                       KF5::AkonadiCore
 PRIVATE
 )
 
 set_target_properties(KF5AlarmCalendar PROPERTIES
       VERSION ${KALARMCAL_VERSION_STRING}
       SOVERSION ${KALARMCAL_SOVERSION}
       EXPORT_NAME AlarmCalendar
 )
 
 
 target_include_directories(KF5AlarmCalendar INTERFACE "$<INSTALL_INTERFACE:${KDE_INSTALL_INCLUDEDIR_KF5}/KAlarmCal>")
 target_include_directories(KF5AlarmCalendar PUBLIC "$<BUILD_INTERFACE:${KAlarmCal_SOURCE_DIR}/src;${KAlarmCal_BINARY_DIR}/src>")
 
 
 install(TARGETS KF5AlarmCalendar EXPORT KF5AlarmCalendarTargets ${KF5_INSTALL_TARGETS_DEFAULT_ARGS})
 
 
 ecm_generate_headers(KAlarmCal_CamelCase_HEADERS
   HEADER_NAMES
   Akonadi
   AlarmText
   CollectionAttribute
   CompatibilityAttribute
   DateTime
   EventAttribute
   Identities
   KACalendar
   KADateTime
   KAEvent
   KARecurrence
   Repetition
   Version
   PREFIX KAlarmCal
   REQUIRED_HEADERS KAlarmCal_HEADERS
 )
 
 
 install(FILES
         ${CMAKE_CURRENT_BINARY_DIR}/kalarmcal_export.h
-        identities.h
-        kacalendar.h
-        version.h
         ${KAlarmCal_HEADERS}
         DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF5}/KAlarmCal/kalarmcal
         COMPONENT Devel
 )
 install(FILES
         ${KAlarmCal_CamelCase_HEADERS}
         DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF5}/KAlarmCal/KAlarmCal/
         COMPONENT Devel
 )
 
 
 ecm_generate_pri_file(BASE_NAME KAlarmCal LIB_NAME KF5AlarmCalendar DEPS "Holidays IdentityManagement CoreAddons CalendarCore AkonadiCore" FILENAME_VAR PRI_FILENAME INCLUDE_INSTALL_DIR ${KDE_INSTALL_INCLUDEDIR_KF5}/KAlarmCal/)
 install(FILES ${PRI_FILENAME} DESTINATION ${ECM_MKSPECS_INSTALL_DIR})