diff --git a/sdk/js/src/mock/governance.ts b/sdk/js/src/mock/governance.ts
index c0c9eee87..a2d70dfbc 100644
--- a/sdk/js/src/mock/governance.ts
+++ b/sdk/js/src/mock/governance.ts
@@ -148,7 +148,7 @@ export class GovernanceEmitter extends MockEmitter {
   ) {
     const payload = Buffer.alloc(32);
     payload.write(
-      tryNativeToHexString(newContract, this.chain as ChainId),
+      tryNativeToHexString(newContract, chain as ChainId),
       0,
       "hex"
     );