From a1f542b6743bba384763cb0b76a67d2e919ed4e6 Mon Sep 17 00:00:00 2001
From: Danny Ryan <dannyjryan@gmail.com>
Date: Fri, 8 Feb 2019 01:07:46 -0600
Subject: [PATCH] Update specs/core/1_shard-data-chains.md

Co-Authored-By: vbuterin <v@buterin.com>
---
 specs/core/1_shard-data-chains.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/specs/core/1_shard-data-chains.md b/specs/core/1_shard-data-chains.md
index f25844ecb..a401c87c3 100644
--- a/specs/core/1_shard-data-chains.md
+++ b/specs/core/1_shard-data-chains.md
@@ -78,7 +78,7 @@ We define the helper `get_proposal_committee` as follows:
 ```python
 def get_proposal_committee(seed: Bytes32,
                           validators: List[Validator],
-                          shard: int,
+                          shard: ShardNumber,
                           epoch: EpochNumber) -> List[ValidatorIndex]:
                   
     earlier_committee_start = epoch - (epoch % PROPOSAL_RESHUFFLE_PERIOD) - PROPOSAL_RESHUFFLE_PERIOD * 2