diff --git a/src/service/Resources.cpp b/src/service/Resources.cpp
--- a/src/service/Resources.cpp
+++ b/src/service/Resources.cpp
@@ -54,6 +54,11 @@
 {
 }
 
+Resources::Private::~Private()
+{
+    quit();
+}
+
 namespace {
 EventList events;
 QMutex events_mutex;
diff --git a/src/service/Resources_p.h b/src/service/Resources_p.h
--- a/src/service/Resources_p.h
+++ b/src/service/Resources_p.h
@@ -38,6 +38,7 @@
 
 public:
     Private(Resources *parent);
+    ~Private();
 
     void run() Q_DECL_OVERRIDE;
 
diff --git a/src/service/plugins/sqlite/ResourceScoreMaintainer.cpp b/src/service/plugins/sqlite/ResourceScoreMaintainer.cpp
--- a/src/service/plugins/sqlite/ResourceScoreMaintainer.cpp
+++ b/src/service/plugins/sqlite/ResourceScoreMaintainer.cpp
@@ -40,6 +40,7 @@
 
 class ResourceScoreMaintainer::Private : public QThread {
 public:
+    ~Private();
     typedef QString ApplicationName;
     typedef QString ActivityID;
     typedef QList<QString> ResourceList;
@@ -55,6 +56,11 @@
                          const Applications &applications);
 };
 
+ResourceScoreMaintainer::Private::~Private()
+{
+    quit();
+}
+
 void ResourceScoreMaintainer::Private::run()
 {
     using namespace kamd::utils;