From f9d2689a1212703586927f0e8612ed1700750d1b Mon Sep 17 00:00:00 2001
From: Jacob Evans <jacob@dekz.net>
Date: Thu, 10 May 2018 15:59:44 +1000
Subject: Pad to 32 if asset ids are small

---
 packages/contracts/src/utils/asset_proxy_utils.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'packages')

diff --git a/packages/contracts/src/utils/asset_proxy_utils.ts b/packages/contracts/src/utils/asset_proxy_utils.ts
index 1a7a312dd..dc31c3497 100644
--- a/packages/contracts/src/utils/asset_proxy_utils.ts
+++ b/packages/contracts/src/utils/asset_proxy_utils.ts
@@ -18,7 +18,8 @@ export const assetProxyUtils = {
     encodeUint256(value: BigNumber): Buffer {
         const formattedValue = new BN(value.toString(10));
         const encodedValue = ethUtil.toBuffer(formattedValue);
-        return encodedValue;
+        const paddedValue = ethUtil.setLengthLeft(encodedValue, 32);
+        return paddedValue;
     },
     encodeERC20ProxyData(tokenAddress: string): string {
         const encodedAssetProxyId = assetProxyUtils.encodeAssetProxyId(AssetProxyId.ERC20);
-- 
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