diff --git a/src/DockAreaTabBar.h b/src/DockAreaTabBar.h
index 44c6912..0ad1fac 100644
--- a/src/DockAreaTabBar.h
+++ b/src/DockAreaTabBar.h
@@ -49,7 +49,7 @@ class CFloatingDockContainer;
  * has not finished. And we need to remove a tab, if the user drags a
  * a dock widget out of a group of tabbed widgets
  */
-class CDockAreaTabBar : public QScrollArea
+class ADS_EXPORT CDockAreaTabBar : public QScrollArea
 {
 	Q_OBJECT
 private:
diff --git a/src/DockAreaTitleBar.h b/src/DockAreaTitleBar.h
index 8b07d7b..afa9a4c 100644
--- a/src/DockAreaTitleBar.h
+++ b/src/DockAreaTitleBar.h
@@ -47,7 +47,7 @@ struct DockAreaTitleBarPrivate;
  * The title bar contains a tabbar with all tabs for a dock widget group and
  * with a tabs menu button, a undock button and a close button.
  */
-class CDockAreaTitleBar : public QFrame
+class ADS_EXPORT CDockAreaTitleBar : public QFrame
 {
 	Q_OBJECT
 private:
diff --git a/src/ElidingLabel.h b/src/ElidingLabel.h
index c64b99c..b678395 100644
--- a/src/ElidingLabel.h
+++ b/src/ElidingLabel.h
@@ -31,6 +31,8 @@
 //============================================================================
 #include <QLabel>
 
+#include "ads_globals.h"
+
 namespace ads
 {
 struct ElidingLabelPrivate;
@@ -41,7 +43,7 @@ struct ElidingLabelPrivate;
  * and reading the text via a pointer to the base class QLabel does not work
  * properly
  */
-class CElidingLabel : public QLabel
+class ADS_EXPORT CElidingLabel : public QLabel
 {
 	Q_OBJECT
 private: