diff --git a/miner/worker.go b/miner/worker.go
index d5f9dd8c5549f1178425b425c84515ab4e8df002..5fa5d3777eef3ff5cd9e2c6fa04c012e63b75e44 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -224,7 +224,13 @@ func (self *worker) wait() {
 				}
 				self.mux.Post(core.NewMinedBlockEvent{block})
 
-				glog.V(logger.Info).Infof("🔨  Mined block #%v", block.Number())
+				var stale string
+				canonBlock := self.chain.GetBlockByNumber(block.NumberU64())
+				if canonBlock != nil && canonBlock.Hash() != block.Hash() {
+					stale = "stale-"
+				}
+
+				glog.V(logger.Info).Infof("🔨  Mined %sblock #%v (%x)", stale, block.Number(), block.Hash().Bytes()[:4])
 
 				jsonlogger.LogJson(&logger.EthMinerNewBlock{
 					BlockHash:     block.Hash().Hex(),