diff --git a/beacon_chain/request_manager.nim b/beacon_chain/request_manager.nim
index 4573409ea..114a08a0f 100644
--- a/beacon_chain/request_manager.nim
+++ b/beacon_chain/request_manager.nim
@@ -71,6 +71,7 @@ proc fetchAncestorBlocksFromNetwork(rman: RequestManager,
   except CancelledError as exc:
     raise exc
   except CatchableError as exc:
+    peer.updateScore(PeerScoreNoBlocks)
     debug "Error while fetching ancestor blocks", exc = exc.msg,
           items = shortLog(items), peer = peer, peer_score = peer.getScore()
     raise exc