diff --git a/core/blockchain.go b/core/blockchain.go
index aab2e72f3a..6772ea2848 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -1073,7 +1073,7 @@ func (st *insertStats) report(chain []*types.Block, index int) {
 		}
 		log.Info("Imported new chain segment", context...)
 
-		*st = insertStats{startTime: now, lastIndex: index}
+		*st = insertStats{startTime: now, lastIndex: index + 1}
 	}
 }