diff --git a/ethcore/src/client/client.rs b/ethcore/src/client/client.rs
index 5cfe8fce82c..b469cf45180 100644
--- a/ethcore/src/client/client.rs
+++ b/ethcore/src/client/client.rs
@@ -2181,7 +2181,7 @@ impl ImportSealedBlock for Client {
 			route
 		};
 		let route = ChainRoute::from([route].as_ref());
-		self.importer.miner.chain_new_blocks(self, &[h.clone()], &[], route.enacted(), route.retracted(), true);
+		self.importer.miner.chain_new_blocks(self, &[h.clone()], &[], route.enacted(), route.retracted(), self.engine.seals_internally().is_some());
 		self.notify(|notify| {
 			notify.new_blocks(
 				vec![h.clone()],