diff --git a/core/blockchain.go b/core/blockchain.go
index 183ba03d9c..e29149f2ac 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -1778,7 +1778,7 @@ func (bc *BlockChain) insertChain(chain types.Blocks, setHead bool, makeWitness
 	// Fire a single chain head event if we've progressed the chain
 	defer func() {
 		if lastCanon != nil && bc.CurrentBlock().Hash() == lastCanon.Hash() {
-			bc.chainHeadFeed.Send(ChainHeadEvent{Header: lastCanon.Header(), Time: uint64(mclock.Now().Sub(stats.startTime))})
+			bc.chainHeadFeed.Send(ChainHeadEvent{Header: lastCanon.Header(), ProcessingTime: mclock.Now().Sub(stats.startTime)})
 		}
 	}()
 	// Start the parallel header verifier
diff --git a/core/events.go b/core/events.go
index 5c72a50f75..8e51058b58 100644
--- a/core/events.go
+++ b/core/events.go
@@ -17,6 +17,8 @@
 package core
 
 import (
+	"time"
+
 	"github.com/ethereum/go-ethereum/core/types"
 )
 
@@ -33,6 +35,6 @@ type ChainEvent struct {
 }
 
 type ChainHeadEvent struct {
-	Header *types.Header
-	Time   uint64
+	Header         *types.Header
+	ProcessingTime time.Duration
 }
diff --git a/ethstats/ethstats.go b/ethstats/ethstats.go
index 8510bb5ba9..b5e8b630e3 100644
--- a/ethstats/ethstats.go
+++ b/ethstats/ethstats.go
@@ -604,7 +604,7 @@ func (s uncleStats) MarshalJSON() ([]byte, error) {
 // reportBlock retrieves the current chain head and reports it to the stats server.
 func (s *Service) reportBlock(conn *connWrapper, header *core.ChainHeadEvent) error {
 	// Gather the block details from the header or block chain
-	details := s.assembleBlockStats(header.Header, header.Time)
+	details := s.assembleBlockStats(header.Header, header.ProcessingTime)
 
 	// Short circuit if the block detail is not available.
 	if details == nil {
@@ -625,7 +625,7 @@ func (s *Service) reportBlock(conn *connWrapper, header *core.ChainHeadEvent) er
 
 // assembleBlockStats retrieves any required metadata to report a single block
 // and assembles the block stats. If block is nil, the current head is processed.
-func (s *Service) assembleBlockStats(header *types.Header, time uint64) *blockStats {
+func (s *Service) assembleBlockStats(header *types.Header, processingTime time.Duration) *blockStats {
 	// Gather the block infos from the local blockchain
 	var (
 		txs    []txStats
@@ -672,7 +672,7 @@ func (s *Service) assembleBlockStats(header *types.Header, time uint64) *blockSt
 		TxHash:         header.TxHash,
 		Root:           header.Root,
 		Uncles:         uncles,
-		ProcessingTime: time,
+		ProcessingTime: uint64(processingTime),
 	}
 }