diff --git a/icons/CMakeLists.txt b/icons/CMakeLists.txt
index 47409fc..349993d 100644
--- a/icons/CMakeLists.txt
+++ b/icons/CMakeLists.txt
@@ -1,4 +1,2 @@
 qt5_add_resources(icons_SRCS icons.qrc)
 add_library(icons OBJECT ${icons_SRCS})
-
-add_subdirectory(app)
diff --git a/icons/app/CMakeLists.txt b/icons/app/CMakeLists.txt
deleted file mode 100644
index 9d15c9f..0000000
--- a/icons/app/CMakeLists.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-file(GLOB app_icons "*-apps-ktimetracker.png")
-ecm_add_app_icon(ktimetracker_app_icon_SRCS ICONS ${app_icons})
-
-add_library(ktimetracker_app_icon OBJECT ${ktimetracker_app_icon_SRCS})
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 81c30ab..4071b42 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,93 +1,106 @@
 set(ktimetracker_SRCS
     dialogs/edittimedialog.cpp
     dialogs/taskpropertiesdialog.cpp
 
     export/totalsastext.cpp
     export/csvhistory.cpp
     export/csvtotals.cpp
     export/export.cpp
 
     file/filecalendar.cpp
     file/icalformatkio.cpp
 
     model/event.cpp
     model/eventsmodel.cpp
     model/projectmodel.cpp
     model/task.cpp
     model/tasksmodel.cpp
     model/tasksmodelitem.cpp
 
     settings/ktimetrackerconfigdialog.cpp
 
     widgets/searchline.cpp
     widgets/taskswidget.cpp
 
     dialogs/exportdialog.cpp
     desktoptracker.cpp
     focusdetector.cpp
     dialogs/historydialog.cpp
     idletimedetector.cpp
     ktimetrackerutility.cpp
     mainwindow.cpp
     import/plannerparser.cpp
     taskview.cpp
     timetrackerstorage.cpp
     timetrackerwidget.cpp
     tray.cpp
     treeviewheadercontextmenu.cpp
     $<TARGET_OBJECTS:pics>
     $<TARGET_OBJECTS:icons>
-    $<TARGET_OBJECTS:ktimetracker_app_icon>
 )
 
 ecm_qt_declare_logging_category(ktimetracker_SRCS
     HEADER ktt_debug.h
     IDENTIFIER KTT_LOG
     CATEGORY_NAME log_ktt
 )
 
 qt5_add_dbus_adaptor(ktimetracker_SRCS
     org.kde.ktimetracker.ktimetracker.xml
     timetrackerwidget.h
     TimeTrackerWidget
     mainadaptor
     MainAdaptor
 )
 
 ki18n_wrap_ui(ktimetracker_SRCS
     dialogs/exportdialog.ui
     dialogs/historydialog.ui
     settings/cfgbehavior.ui
     settings/cfgdisplay.ui
     settings/cfgstorage.ui
 )
 
 kconfig_add_kcfg_files(ktimetracker_SRCS settings/ktimetracker.kcfgc)
 
 qt5_add_resources(ktimetracker_SRCS ktimetracker.qrc)
 
 add_library(libktimetracker STATIC ${ktimetracker_SRCS})
 target_link_libraries(libktimetracker
     KF5::ConfigWidgets
     KF5::WindowSystem
     KF5::Notifications
     KF5::I18n
     KF5::XmlGui
     KF5::JobWidgets
     KF5::KIOCore
     KF5::IdleTime
     KF5::DBusAddons
     KF5::CalendarCore
     KF5::TextWidgets
 )
 
-add_executable(ktimetracker main.cpp)
+ecm_add_app_icon(ktimetracker_app_icon_SRCS ICONS
+    ${CMAKE_CURRENT_SOURCE_DIR}/../icons/app/16-apps-ktimetracker.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/../icons/app/22-apps-ktimetracker.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/../icons/app/32-apps-ktimetracker.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/../icons/app/48-apps-ktimetracker.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/../icons/app/64-apps-ktimetracker.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/../icons/app/128-apps-ktimetracker.png
+)
+
+# Add ktimetracker_app_icon_SRCS to the .exe target directly, otherwise
+# the icon is not included on Windows.
+add_executable(ktimetracker
+    main.cpp
+    ${ktimetracker_app_icon_SRCS}
+)
 target_link_libraries(ktimetracker libktimetracker)
 
 install(TARGETS ktimetracker ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 install(FILES org.kde.ktimetracker.ktimetracker.xml DESTINATION ${KDE_INSTALL_DBUSINTERFACEDIR})
 install(PROGRAMS org.kde.ktimetracker.desktop DESTINATION ${KDE_INSTALL_APPDIR})
 
 if(BUILD_TESTING)
     add_subdirectory(tests)
 endif()