diff --git a/beacon-chain/state/stategen/replay.go b/beacon-chain/state/stategen/replay.go
index 4140ec2a6d..c7dbe540b7 100644
--- a/beacon-chain/state/stategen/replay.go
+++ b/beacon-chain/state/stategen/replay.go
@@ -25,6 +25,7 @@ func (s *State) ReplayBlocks(
 	defer span.End()
 
 	var err error
+	log.Debugf("Replaying state from slot %d till slot %d", state.Slot(), targetSlot)
 	// The input block list is sorted in decreasing slots order.
 	if len(signed) > 0 {
 		for i := len(signed) - 1; i >= 0; i-- {