diff --git a/libsound/src/qtgstreamerbackend/qtgstreamerbackend.h b/libsound/src/qtgstreamerbackend/qtgstreamerbackend.h
--- a/libsound/src/qtgstreamerbackend/qtgstreamerbackend.h
+++ b/libsound/src/qtgstreamerbackend/qtgstreamerbackend.h
@@ -19,14 +19,13 @@
 #define GSTREAMERBACKEND_H
 
 #include "../backendinterface.h"
-#include "libsound_export.h"
 
 class CaptureBackendInterface;
 class OutputBackendInterface;
 class QtGStreamerCaptureBackend;
 class QtGStreamerOutputBackend;
 
-class LIBSOUND_EXPORT QtGStreamerBackend : public BackendInterface
+class QtGStreamerBackend : public BackendInterface
 {
     Q_OBJECT
 
diff --git a/libsound/src/qtgstreamerbackend/qtgstreamerbackend.cpp b/libsound/src/qtgstreamerbackend/qtgstreamerbackend.cpp
--- a/libsound/src/qtgstreamerbackend/qtgstreamerbackend.cpp
+++ b/libsound/src/qtgstreamerbackend/qtgstreamerbackend.cpp
@@ -18,7 +18,6 @@
 #include "qtgstreamerbackend.h"
 #include "qtgstreamercapturebackend.h"
 #include "qtgstreameroutputbackend.h"
-#include "libsound_export.h"
 #include <KPluginFactory>
 
 K_PLUGIN_FACTORY_WITH_JSON( BackendFactory,
diff --git a/libsound/src/qtmultimediabackend/qtmultimediabackend.h b/libsound/src/qtmultimediabackend/qtmultimediabackend.h
--- a/libsound/src/qtmultimediabackend/qtmultimediabackend.h
+++ b/libsound/src/qtmultimediabackend/qtmultimediabackend.h
@@ -19,14 +19,13 @@
 #define QTMULTIMEDIABACKEND_H
 
 #include "../backendinterface.h"
-#include "libsound_export.h"
 
 class CaptureBackendInterface;
 class OutputBackendInterface;
 class QtMultimediaCaptureBackend;
 class QtMultimediaOutputBackend;
 
-class LIBSOUND_EXPORT QtMultimediaBackend : public BackendInterface
+class QtMultimediaBackend : public BackendInterface
 {
     Q_OBJECT
 
diff --git a/libsound/src/qtmultimediabackend/qtmultimediabackend.cpp b/libsound/src/qtmultimediabackend/qtmultimediabackend.cpp
--- a/libsound/src/qtmultimediabackend/qtmultimediabackend.cpp
+++ b/libsound/src/qtmultimediabackend/qtmultimediabackend.cpp
@@ -18,7 +18,6 @@
 #include "qtmultimediabackend.h"
 #include "qtmultimediacapturebackend.h"
 #include "qtmultimediaoutputbackend.h"
-#include "libsound_export.h"
 #include <KPluginFactory>
 
 K_PLUGIN_FACTORY_WITH_JSON( BackendFactory,
diff --git a/src/core/resources/resourceinterface.h b/src/core/resources/resourceinterface.h
--- a/src/core/resources/resourceinterface.h
+++ b/src/core/resources/resourceinterface.h
@@ -21,14 +21,15 @@
 #ifndef RESOURCEINTERFACE_H
 #define RESOURCEINTERFACE_H
 
+#include "artikulatecore_export.h"
 #include <QObject>
 
 class ResourceManager;
 class QUrl;
 class QXmlSchema;
 class QDomDocument;
 
-class ResourceInterface : public QObject
+class ARTIKULATECORE_EXPORT ResourceInterface : public QObject
 {
     Q_OBJECT