diff --git a/camino/src/history/HistoryDataSource.mm b/camino/src/history/HistoryDataSource.mm
index 86f80a2be0e..836723b6da4 100644
--- a/camino/src/history/HistoryDataSource.mm
+++ b/camino/src/history/HistoryDataSource.mm
@@ -80,8 +80,8 @@ public:
 
   NS_IMETHOD OnChange(nsIRDFDataSource*, nsIRDFResource*, nsIRDFResource*, nsIRDFNode*, nsIRDFNode*);
 
-  NS_IMETHOD BeginUpdateBatch(nsIRDFDataSource*) { return NS_OK; }
-  NS_IMETHOD EndUpdateBatch(nsIRDFDataSource*)   { return NS_OK; }
+  NS_IMETHOD OnBeginUpdateBatch(nsIRDFDataSource*) { return NS_OK; }
+  NS_IMETHOD OnEndUpdateBatch(nsIRDFDataSource*)   { return NS_OK; }
 
 private: