diff --git a/tree/tree/inc/TTree.h b/tree/tree/inc/TTree.h
index da69e08d5b0358ee00696652123b50a8c866ad63..f14bde64f0cf250c319bb9e5f19df9b08885a711 100644
--- a/tree/tree/inc/TTree.h
+++ b/tree/tree/inc/TTree.h
@@ -223,7 +223,6 @@ public:
    virtual TFriendElement *AddFriend(TTree* tree, const char* alias = "", Bool_t warn = kFALSE);
    virtual void            AddTotBytes(Int_t tot) { fTotBytes += tot; }
    virtual void            AddZipBytes(Int_t zip) { fZipBytes += zip; }
-   virtual void            AutoFlush();
    virtual Long64_t        AutoSave(Option_t* option = "");
    virtual Int_t           Branch(TCollection* list, Int_t bufsize = 32000, Int_t splitlevel = 99, const char* name = "");
    virtual Int_t           Branch(TList* list, Int_t bufsize = 32000, Int_t splitlevel = 99);