diff --git a/src/wayland/autotests/client/test_datadevice.cpp b/src/wayland/autotests/client/test_datadevice.cpp
index 52b447ce22..5f664a2841 100644
--- a/src/wayland/autotests/client/test_datadevice.cpp
+++ b/src/wayland/autotests/client/test_datadevice.cpp
@@ -208,7 +208,7 @@ void TestDataDevice::testDrag()
     auto deviceInterface = dataDeviceCreatedSpy.first().first().value<DataDeviceInterface*>();
     QVERIFY(deviceInterface);
 
-    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(DataSourceInterface*)));
+    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(KWayland::Server::DataSourceInterface*)));
     QVERIFY(dataDeviceCreatedSpy.isValid());
 
     QScopedPointer<DataSource> dataSource(m_dataDeviceManager->createDataSource());
@@ -316,7 +316,7 @@ void TestDataDevice::testSetSelection()
     auto deviceInterface = dataDeviceCreatedSpy.first().first().value<DataDeviceInterface*>();
     QVERIFY(deviceInterface);
 
-    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(DataSourceInterface*)));
+    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(KWayland::Server::DataSourceInterface*)));
     QVERIFY(dataDeviceCreatedSpy.isValid());
 
     QScopedPointer<DataSource> dataSource(m_dataDeviceManager->createDataSource());
diff --git a/src/wayland/autotests/client/test_datasource.cpp b/src/wayland/autotests/client/test_datasource.cpp
index 00eb5c1bd9..73c520988f 100644
--- a/src/wayland/autotests/client/test_datasource.cpp
+++ b/src/wayland/autotests/client/test_datasource.cpp
@@ -131,7 +131,7 @@ void TestDataSource::testOffer()
     using namespace KWayland::Client;
     using namespace KWayland::Server;
 
-    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(DataSourceInterface*)));
+    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(KWayland::Server::DataSourceInterface*)));
     QVERIFY(dataSourceCreatedSpy.isValid());
 
     QScopedPointer<DataSource> dataSource(m_dataDeviceManager->createDataSource());
@@ -193,7 +193,7 @@ void TestDataSource::testTargetAccepts()
     using namespace KWayland::Client;
     using namespace KWayland::Server;
 
-    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(DataSourceInterface*)));
+    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(KWayland::Server::DataSourceInterface*)));
     QVERIFY(dataSourceCreatedSpy.isValid());
 
     QScopedPointer<DataSource> dataSource(m_dataDeviceManager->createDataSource());
@@ -218,7 +218,7 @@ void TestDataSource::testRequestSend()
     using namespace KWayland::Client;
     using namespace KWayland::Server;
 
-    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(DataSourceInterface*)));
+    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(KWayland::Server::DataSourceInterface*)));
     QVERIFY(dataSourceCreatedSpy.isValid());
 
     QScopedPointer<DataSource> dataSource(m_dataDeviceManager->createDataSource());
@@ -250,7 +250,7 @@ void TestDataSource::testCancel()
     using namespace KWayland::Client;
     using namespace KWayland::Server;
 
-    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(DataSourceInterface*)));
+    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(KWayland::Server::DataSourceInterface*)));
     QVERIFY(dataSourceCreatedSpy.isValid());
 
     QScopedPointer<DataSource> dataSource(m_dataDeviceManager->createDataSource());
@@ -272,7 +272,7 @@ void TestDataSource::testServerGet()
     using namespace KWayland::Client;
     using namespace KWayland::Server;
 
-    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(DataSourceInterface*)));
+    QSignalSpy dataSourceCreatedSpy(m_dataDeviceManagerInterface, SIGNAL(dataSourceCreated(KWayland::Server::DataSourceInterface*)));
     QVERIFY(dataSourceCreatedSpy.isValid());
 
     QScopedPointer<DataSource> dataSource(m_dataDeviceManager->createDataSource());
diff --git a/src/wayland/datadevicemanager_interface.h b/src/wayland/datadevicemanager_interface.h
index 1b1ab4eb2b..97d992013b 100644
--- a/src/wayland/datadevicemanager_interface.h
+++ b/src/wayland/datadevicemanager_interface.h
@@ -44,7 +44,7 @@ public:
     bool isValid() const;
 
 Q_SIGNALS:
-    void dataSourceCreated(DataSourceInterface*);
+    void dataSourceCreated(KWayland::Server::DataSourceInterface*);
     void dataDeviceCreated(KWayland::Server::DataDeviceInterface*);
 
 private: