diff --git a/PhysFit/B2DXFitters/B2DXFitters/Bs2Dsh2011TDAnaModels.h b/PhysFit/B2DXFitters/B2DXFitters/Bs2Dsh2011TDAnaModels.h
index 3749f036448b52d47c3c07ee586c62410c836548..39496689cb814402e81a5cd16bc7d381b4fdaaa3 100644
--- a/PhysFit/B2DXFitters/B2DXFitters/Bs2Dsh2011TDAnaModels.h
+++ b/PhysFit/B2DXFitters/B2DXFitters/Bs2Dsh2011TDAnaModels.h
@@ -11,6 +11,7 @@
 #include "RooProdPdf.h"
 #include "RooArgList.h"
 #include "RooAbsReal.h"
+#include "RooKeysPdf.h"
 
 #include <vector>