diff --git a/ethcore/src/block_queue.rs b/ethcore/src/block_queue.rs
index 2e3728aee..48b55fc0d 100644
--- a/ethcore/src/block_queue.rs
+++ b/ethcore/src/block_queue.rs
@@ -38,6 +38,8 @@ pub struct BlockQueueInfo {
 	pub verified_queue_size: usize,
 	/// Number of blocks being verified
 	pub verifying_queue_size: usize,
+	/// Indicates queue is empty
+	pub empty: bool
 }
 
 impl BlockQueueInfo {
@@ -285,7 +287,6 @@ impl BlockQueue {
 		for h in hashes {
 			processing.remove(&h);
 		}
-		//TODO: reward peers
 	}
 
 	/// Removes up to `max` verified blocks from the queue
@@ -312,6 +313,7 @@ impl BlockQueue {
 			verified_queue_size: verification.verified.len(),
 			unverified_queue_size: verification.unverified.len(),
 			verifying_queue_size: verification.verifying.len(),
+			empty: verification.verified.is_empty() && verification.unverified.is_empty() && verification.verifying.is_empty(),
 		}
 	}
 }
@@ -393,4 +395,14 @@ mod tests {
 			panic!("error importing block that has already been drained ({:?})", e);
 		}
 	}
+
+	#[test]
+	fn returns_empty_once_finished() {
+		let mut queue = get_test_queue();
+		queue.import_block(get_good_dummy_block()).expect("error importing block that is valid by definition");
+		queue.flush();
+		queue.drain(1);
+
+		assert!(queue.queue_info().empty);
+	}
 }
diff --git a/ethcore/src/client.rs b/ethcore/src/client.rs
index 3a0309c1c..3b5627504 100644
--- a/ethcore/src/client.rs
+++ b/ethcore/src/client.rs
@@ -27,7 +27,7 @@ use spec::Spec;
 use engine::Engine;
 use views::HeaderView;
 use block_queue::{BlockQueue, BlockQueueInfo};
-use service::NetSyncMessage;
+use service::{NetSyncMessage, SyncMessage};
 use env_info::LastHashes;
 use verification::*;
 use block::*;
@@ -223,7 +223,7 @@ impl Client {
 	}
 
 	/// This is triggered by a message coming from a block queue when the block is ready for insertion
-	pub fn import_verified_blocks(&self, _io: &IoChannel<NetSyncMessage>) -> usize {
+	pub fn import_verified_blocks(&self, io: &IoChannel<NetSyncMessage>) -> usize {
 		let mut ret = 0;
 		let mut bad = HashSet::new();
 		let _import_lock = self.import_lock.lock();
@@ -295,6 +295,10 @@ impl Client {
 			self.report.write().unwrap().accrue_block(&block);
 			trace!(target: "client", "Imported #{} ({})", header.number(), header.hash());
 			ret += 1;
+
+			if self.block_queue.read().unwrap().queue_info().empty {
+				io.send(NetworkIoMessage::User(SyncMessage::BlockVerified)).unwrap();
+			}
 		}
 		self.block_queue.write().unwrap().mark_as_good(&good_blocks);
 		ret