diff --git a/src/domain/datasource.h b/src/domain/datasource.h
--- a/src/domain/datasource.h
+++ b/src/domain/datasource.h
@@ -48,7 +48,6 @@
     enum ContentType {
         NoContent = 0,
         Tasks,
-        Notes
     };
     Q_DECLARE_FLAGS(ContentTypes, ContentType)
 
diff --git a/tests/units/akonadi/akonadiserializertest.cpp b/tests/units/akonadi/akonadiserializertest.cpp
--- a/tests/units/akonadi/akonadiserializertest.cpp
+++ b/tests/units/akonadi/akonadiserializertest.cpp
@@ -324,17 +324,12 @@
 
         const auto noType = Domain::DataSource::ContentTypes(Domain::DataSource::NoContent);
         const auto taskType = Domain::DataSource::ContentTypes(Domain::DataSource::Tasks);
-        const auto noteType = Domain::DataSource::ContentTypes(Domain::DataSource::Notes);
-        const auto allTypes = taskType | noteType;
 
-        QTest::newRow("nominal case") << "name" << "icon-name" << allTypes << true;
-
-        QTest::newRow("only notes") << "name" << "icon-name" << noteType << true;
         QTest::newRow("only tasks") << "name" << "icon-name" << taskType << true;
         QTest::newRow("only nothing ;)") << "name" << "icon-name" << noType << true;
 
-        QTest::newRow("not selected") << "name" << "icon-name" << allTypes << false;
-        QTest::newRow("selected") << "name" << "icon-name" << allTypes << true;
+        QTest::newRow("not selected") << "name" << "icon-name" << taskType << false;
+        QTest::newRow("selected") << "name" << "icon-name" << taskType << true;
 
         QTest::newRow("empty case") << QString() << QString() << noType << true;
     }
@@ -353,8 +348,6 @@
         QStringList mimeTypes;
         if (contentTypes & Domain::DataSource::Tasks)
             mimeTypes << QStringLiteral("application/x-vnd.akonadi.calendar.todo");
-        if (contentTypes & Domain::DataSource::Notes)
-            mimeTypes << QStringLiteral("text/x-vnd.akonadi.note");
 
 
         // ... stored in a data source
@@ -411,9 +404,6 @@
         QFETCH(bool, isSelected);
 
         Domain::DataSource::ContentTypes expectedContentTypes;
-        if (mimeTypes.contains(QStringLiteral("text/x-vnd.akonadi.note"))) {
-            expectedContentTypes |= Domain::DataSource::Notes;
-        }
         if (mimeTypes.contains(QStringLiteral("application/x-vnd.akonadi.calendar.todo"))) {
             expectedContentTypes |= Domain::DataSource::Tasks;
         }
diff --git a/tests/units/domain/datasourcetest.cpp b/tests/units/domain/datasourcetest.cpp
--- a/tests/units/domain/datasourcetest.cpp
+++ b/tests/units/domain/datasourcetest.cpp
@@ -87,18 +87,18 @@
     {
         DataSource ds;
         QSignalSpy spy(&ds, &DataSource::contentTypesChanged);
-        ds.setContentTypes(Domain::DataSource::Notes);
+        ds.setContentTypes(Domain::DataSource::Tasks);
         QCOMPARE(spy.count(), 1);
         QCOMPARE(spy.first().first().value<Domain::DataSource::ContentTypes>(),
-                 Domain::DataSource::Notes);
+                 Domain::DataSource::Tasks);
     }
 
     void shouldNotNotifyIdenticalContentTypesChanges()
     {
         DataSource ds;
-        ds.setContentTypes(Domain::DataSource::Notes);
+        ds.setContentTypes(Domain::DataSource::Tasks);
         QSignalSpy spy(&ds, &DataSource::contentTypesChanged);
-        ds.setContentTypes(Domain::DataSource::Notes);
+        ds.setContentTypes(Domain::DataSource::Tasks);
         QCOMPARE(spy.count(), 0);
     }
 
diff --git a/tests/units/presentation/availablesourcesmodeltest.cpp b/tests/units/presentation/availablesourcesmodeltest.cpp
--- a/tests/units/presentation/availablesourcesmodeltest.cpp
+++ b/tests/units/presentation/availablesourcesmodeltest.cpp
@@ -85,11 +85,11 @@
         auto source3 = Domain::DataSource::Ptr::create();
         source3->setName(QStringLiteral("Source 3"));
         source3->setSelected(false);
-        source3->setContentTypes(Domain::DataSource::Notes);
+        source3->setContentTypes(Domain::DataSource::Tasks);
         auto source4 = Domain::DataSource::Ptr::create();
         source4->setSelected(true);
         source4->setName(QStringLiteral("Source 4"));
-        source4->setContentTypes(Domain::DataSource::Notes | Domain::DataSource::Tasks);
+        source4->setContentTypes(Domain::DataSource::Tasks);
         auto source1Provider = Domain::QueryResultProvider<Domain::DataSource::Ptr>::Ptr::create();
         auto source1Result = Domain::QueryResult<Domain::DataSource::Ptr>::create(source1Provider);
         source1Provider->append(source3);