From 4eeefbf707cc60591590d67e2d945f5c559bbcde Mon Sep 17 00:00:00 2001
From: Jamie Hewitt <jamie.hewitt15@gmail.com>
Date: Fri, 30 Jun 2023 17:30:02 +0300
Subject: [PATCH] Checking if dataToken.publishMarketFeeToken exists

---
 src/mappings/fixedRateExchange.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mappings/fixedRateExchange.ts b/src/mappings/fixedRateExchange.ts
index 6cf8ba7..2d00143 100644
--- a/src/mappings/fixedRateExchange.ts
+++ b/src/mappings/fixedRateExchange.ts
@@ -264,7 +264,7 @@ export function handlePublishMarketFeeChanged(
       true
     )
     let feeDecimals = BigInt.fromI32(18).toI32()
-    if (dataToken) {
+    if (dataToken.publishMarketFeeToken) {
       const feeToken = getToken(
         Address.fromString(dataToken.publishMarketFeeToken!),
         false