diff --git a/miner/worker.go b/miner/worker.go
index 11c65199d6..175663bc9c 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -1102,6 +1102,7 @@ LOOP:
 		if err != nil {
 			return
 		}
+		header.GasUsed = 0
 
 		delay := w.engine.Delay(w.chain, work.header, &w.config.DelayLeftOver)
 		if delay == nil {