diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,15 +21,14 @@
 )
 
 set(QT_REQUIRED_VERSION "5.10.0")
-find_package(Qt5 ${QT_REQUIRED_VERSION} CONFIG REQUIRED DBus)
+find_package(Qt5 ${QT_REQUIRED_VERSION} CONFIG REQUIRED DBus Gui Widgets Xml)
 
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
 	I18n
 	Config
-	KCMUtils
+	ConfigWidgets
 	WindowSystem
 	Notifications
-	IconThemes
 	JobWidgets
 	XmlGui
 	KIO
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -60,23 +60,18 @@
 
 add_library(libktimetracker STATIC ${ktimetracker_SRCS})
 target_link_libraries(libktimetracker
-    KF5::KCMUtils
+    KF5::ConfigWidgets
     KF5::WindowSystem
     KF5::Notifications
-    KF5::IconThemes
     KF5::I18n
     KF5::XmlGui
     KF5::JobWidgets
     KF5::KIOCore
     KF5::KIOWidgets
     KF5::IdleTime
     KF5::DBusAddons
     KF5::CalendarCore
-    ${X11_X11_LIB}
 )
-if(X11_Xscreensaver_LIB)
-    target_link_libraries(libktimetracker ${X11_Xscreensaver_LIB})
-endif()
 
 add_executable(ktimetracker main.cpp)
 target_link_libraries(ktimetracker libktimetracker)
diff --git a/src/model/tasksmodelitem.h b/src/model/tasksmodelitem.h
--- a/src/model/tasksmodelitem.h
+++ b/src/model/tasksmodelitem.h
@@ -2,6 +2,7 @@
 #define KTIMETRACKER_TASKSMODELITEM_H
 
 #include <QList>
+#include <QVariant>
 
 class TasksModel;
 
diff --git a/src/taskview.cpp b/src/taskview.cpp
--- a/src/taskview.cpp
+++ b/src/taskview.cpp
@@ -26,6 +26,7 @@
 #include <QClipboard>
 #include <QProgressDialog>
 #include <QHeaderView>
+#include <QMouseEvent>
 
 #include <KMessageBox>
 #include <KJobWidgets>