From c5641c5623a294795790db78659bdbbb3d23863c Mon Sep 17 00:00:00 2001
From: Pablo Carranza Velez <pablo@edgeandnode.com>
Date: Fri, 19 Jan 2024 14:12:10 -0300
Subject: [PATCH] fix: ensure L2 aliased addresses are the correct length

---
 .changeset/ten-moons-lay.md                | 5 +++++
 packages/sdk/src/utils/arbitrum/address.ts | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/ten-moons-lay.md

diff --git a/.changeset/ten-moons-lay.md b/.changeset/ten-moons-lay.md
new file mode 100644
index 000000000..b28238588
--- /dev/null
+++ b/.changeset/ten-moons-lay.md
@@ -0,0 +1,5 @@
+---
+"@graphprotocol/sdk": patch
+---
+
+Ensure L2 aliased addresses are the correct length
diff --git a/packages/sdk/src/utils/arbitrum/address.ts b/packages/sdk/src/utils/arbitrum/address.ts
index c9168eff8..6f92890b7 100644
--- a/packages/sdk/src/utils/arbitrum/address.ts
+++ b/packages/sdk/src/utils/arbitrum/address.ts
@@ -1,3 +1,4 @@
+import { hexZeroPad } from 'ethers/lib/utils'
 import { toBN } from '../units'
 
 // Adapted from:
@@ -8,5 +9,5 @@ export const applyL1ToL2Alias = (l1Address: string): string => {
   const l2AddressAsNumber = l1AddressAsNumber.add(offset)
 
   const mask = toBN(2).pow(160)
-  return l2AddressAsNumber.mod(mask).toHexString()
+  return hexZeroPad(l2AddressAsNumber.mod(mask).toHexString(), 20)
 }