diff --git a/src/plugins/qt4projectmanager/qt4buildconfiguration.h b/src/plugins/qt4projectmanager/qt4buildconfiguration.h
index fbe88d817c2..fd72d2ca3c2 100644
--- a/src/plugins/qt4projectmanager/qt4buildconfiguration.h
+++ b/src/plugins/qt4projectmanager/qt4buildconfiguration.h
@@ -33,6 +33,7 @@
 #ifndef QT4BUILDCONFIGURATION_H
 #define QT4BUILDCONFIGURATION_H
 
+#include "qt4projectmanager_global.h"
 #include "qtversionmanager.h"
 
 #include <projectexplorer/buildconfiguration.h>
@@ -52,7 +53,7 @@ class Qt4ProFileNode;
 class Qt4BuildConfigurationFactory;
 }
 
-class Qt4BuildConfiguration : public ProjectExplorer::BuildConfiguration
+class QT4PROJECTMANAGER_EXPORT Qt4BuildConfiguration : public ProjectExplorer::BuildConfiguration
 {
     Q_OBJECT
     friend class Internal::Qt4BuildConfigurationFactory;
@@ -168,7 +169,7 @@ private:
 };
 
 namespace Internal {
-class Qt4BuildConfigurationFactory : public ProjectExplorer::IBuildConfigurationFactory
+class QT4PROJECTMANAGER_EXPORT Qt4BuildConfigurationFactory : public ProjectExplorer::IBuildConfigurationFactory
 {
     Q_OBJECT
 
diff --git a/src/plugins/qt4projectmanager/qt4project.h b/src/plugins/qt4projectmanager/qt4project.h
index 1135005a155..70480677613 100644
--- a/src/plugins/qt4projectmanager/qt4project.h
+++ b/src/plugins/qt4projectmanager/qt4project.h
@@ -35,6 +35,7 @@
 
 #include "qt4nodes.h"
 #include "qt4target.h"
+#include "qt4projectmanager_global.h"
 
 #include <projectexplorer/project.h>
 #include <projectexplorer/projectnodes.h>
@@ -130,7 +131,7 @@ private:
 
 }
 
-class Qt4Project : public ProjectExplorer::Project
+class QT4PROJECTMANAGER_EXPORT Qt4Project : public ProjectExplorer::Project
 {
     Q_OBJECT
 
diff --git a/src/plugins/qt4projectmanager/qt4target.h b/src/plugins/qt4projectmanager/qt4target.h
index 0ce9e20838c..97f75d2f34a 100644
--- a/src/plugins/qt4projectmanager/qt4target.h
+++ b/src/plugins/qt4projectmanager/qt4target.h
@@ -62,7 +62,7 @@ namespace Internal {
 class Qt4ProFileNode;
 }
 
-class Qt4BaseTarget : public ProjectExplorer::Target
+class QT4PROJECTMANAGER_EXPORT Qt4BaseTarget : public ProjectExplorer::Target
 {
     Q_OBJECT
 public: