diff --git a/Fwk/AppFwk/cafProjectDataModel/cafPdmUiCore/cafSelectionManager.h b/Fwk/AppFwk/cafProjectDataModel/cafPdmUiCore/cafSelectionManager.h
index 4f80799beb..794d5036ba 100644
--- a/Fwk/AppFwk/cafProjectDataModel/cafPdmUiCore/cafSelectionManager.h
+++ b/Fwk/AppFwk/cafProjectDataModel/cafPdmUiCore/cafSelectionManager.h
@@ -37,6 +37,7 @@
 
 #include "cafSelectionChangedReceiver.h"
 
+#include "cafPdmObjectHandle.h"
 #include "cafPdmPointer.h"
 #include "cafPdmField.h"