diff --git a/miner/worker.go b/miner/worker.go
index 716379501e..c98effacd5 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -52,7 +52,7 @@ const (
 	// chainSideChanSize is the size of channel listening to ChainSideEvent.
 	chainSideChanSize = 10
 	// Timeout waiting for M1
-	m1Timeout = 1
+	m1Timeout = 10
 )
 
 // Agent can register themself with the worker