diff --git a/core/blockchain.go b/core/blockchain.go
index c93c71403..61b809319 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -62,7 +62,7 @@ var (
 	blockWriteTimer      = metrics.NewRegisteredTimer("chain/write", nil)
 
 	blockPrefetchExecuteTimer   = metrics.NewRegisteredTimer("chain/prefetch/executes", nil)
-	blockPrefetchInterruptMeter = metrics.NewRegisteredMeter("chain/prefetch/interrupts", nil)	
+	blockPrefetchInterruptMeter = metrics.NewRegisteredMeter("chain/prefetch/interrupts", nil)
 )
 
 const (