diff --git a/include/shlobj.h b/include/shlobj.h
index 0f754d07c8..ccbf008279 100644
--- a/include/shlobj.h
+++ b/include/shlobj.h
@@ -662,11 +662,11 @@ DECLARE_INTERFACE_(IShellFolderView, IUnknown)
 #define IShellFolderView_GetDropPoint(p,a)          (p)->lpVtbl->GetDropPoint(p,a)
 #define IShellFolderView_MoveIcons(p,a)             (p)->lpVtbl->MoveIcons(p,a)
 #define IShellFolderView_SetItemPos(p,a,b)          (p)->lpVtbl->SetItemPos(p,a,b)
-#define IShellFolderView_DropTarget(p,a)            (p)->lpVtbl->DropTarget(p,a)
+#define IShellFolderView_IsBkDropTarget(p,a)        (p)->lpVtbl->IsBkDropTarget(p,a)
 #define IShellFolderView_SetClipboard(p,a)          (p)->lpVtbl->SetClipboard(p,a)
 #define IShellFolderView_SetPoints(p,a)             (p)->lpVtbl->SetPoints(p,a)
 #define IShellFolderView_GetItemSpacing(p,a)        (p)->lpVtbl->GetItemSpacing(p,a)
-#define IShellFolderView_SetCallback(p,a)           (p)->lpVtbl->SetCallback(p,a)
+#define IShellFolderView_SetCallback(p,a,b)         (p)->lpVtbl->SetCallback(p,a,b)
 #define IShellFolderView_Select(p,a)                (p)->lpVtbl->Select(p,a)
 #define IShellFolderView_QuerySupport(p,a)          (p)->lpVtbl->QuerySupport(p,a)
 #define IShellFolderView_SetAutomationObject(p,a)   (p)->lpVtbl->SetAutomationObject(p,a)