--- PamCut/CollectionActions/Histo2DActions/Histo2DAction/Histo2DAction.h	2009/10/29 09:42:44	1.3
+++ PamCut/CollectionActions/Histo2DActions/Histo2DAction/Histo2DAction.h	2009/10/29 17:49:07	1.4
@@ -273,6 +273,16 @@
   _rootHisto = NULL;
 }
 
+// Specializations for _CreateHistos(). See Histo2DAction.cpp
+template<>
+void Histo2DAction<Int_t>::_CreateHisto();
+
+template<>
+void Histo2DAction<Float_t>::_CreateHisto();
+
+template<>
+void Histo2DAction<Double_t>::_CreateHisto();
+
 template<class HistoType>
 void Histo2DAction<HistoType>::_InitHistos() {