diff --git a/src/models/logic/utils/workerpool.ts b/src/models/logic/utils/workerpool.ts
index 4c1c4f5..543e7b2 100644
--- a/src/models/logic/utils/workerpool.ts
+++ b/src/models/logic/utils/workerpool.ts
@@ -31,7 +31,9 @@ const getSignersFromPubKeyAndRegularKeyOwner = (
             return regularKeyOwner;
         }
 
-        return PlatformAddress.fromPublic(signerPubKey, networkId);
+        return PlatformAddress.fromPublic(signerPubKey, {
+            networkId
+        }).toString();
     });
 };