diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -64,7 +64,6 @@
 find_package(KF5KontactInterface ${KONTACTINTERFACE_LIB_VERSION} CONFIG REQUIRED)
 find_package(KF5Libkdepim ${LIBKDEPIM_LIB_VERSION_LIB} CONFIG REQUIRED)
 find_package(KF5GrantleeTheme ${LIBGRANTLEETHEME_LIB_VERSION_LIB} CONFIG REQUIRED)
-find_package(KF5KdepimDBusInterfaces ${KDEPIM_APPS_LIB_VERSION_LIB} CONFIG REQUIRED)
 
 
 include_directories(${kontact_SOURCE_DIR} ${kontact_BINARY_DIR})
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -63,7 +63,6 @@
 
 target_link_libraries(kontact_bin
     KF5::Service
-    KF5::KdepimDBusInterfaces
     kontactprivate
     KF5::KontactInterface
     KF5::Crash
diff --git a/src/main.cpp b/src/main.cpp
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -27,8 +27,6 @@
 #include "prefs.h"
 using namespace Kontact;
 
-#include <KdepimDBusInterfaces/ReminderClient>
-
 #include <KontactInterface/Plugin>
 #include <KontactInterface/UniqueAppHandler>
 #include <KontactInterface/PimUniqueApplication>
@@ -41,6 +39,8 @@
 #include <KCrash>
 
 #include <QCommandLineParser>
+#include <QDBusConnection>
+#include <QDBusConnectionInterface>
 
 #include <iostream>
 #include <kdelibs4configmigrator.h>
@@ -150,7 +150,7 @@
         mMainWindow->selectPlugin(moduleName);
     }
 
-    KPIM::ReminderClient::startDaemon();
+    QDBusConnection::sessionBus().interface()->startService(QStringLiteral("org.kde.kontact"));
 
     // Handle startup notification and window activation
     // (The first time it will do nothing except note that it was called)