--- a/src/hbcore/activity/activity.pri	Thu Jul 15 14:03:49 2010 +0100
+++ b/src/hbcore/activity/activity.pri	Thu Jul 22 16:36:53 2010 +0100
@@ -30,7 +30,8 @@
 
 PUBLIC_HEADERS += $$PWD/hbactivitymanager.h
 
-INTERNAL_HEADERS += $$PWD/hbactivitymanager_p.h \
-                    $$PWD/hbactivityplugininterface_p.h \
+PRIVATE_HEADERS += $$PWD/hbactivitymanager_p.h
+
+RESTRICTED_HEADERS += $$PWD/hbactivityplugininterface_r.h
 
 SOURCES +=  $$PWD/hbactivitymanager.cpp \