diff --git a/sdk/js/src/index.ts b/sdk/js/src/index.ts
index 1ab7f696..7736fdbe 100644
--- a/sdk/js/src/index.ts
+++ b/sdk/js/src/index.ts
@@ -379,12 +379,12 @@ export class Client {
         encoded_order,
         Order.discriminator.length
       );
-      const remainingOutputAmount = anchor.BN.max(
+      const remainingOutputAmount =
         opportunity.order.state.expectedOutputAmount.sub(
           opportunity.order.state.filledOutputAmount
-        ),
-        new anchor.BN(0)
-      );
+        );
+      // new anchor.BN(0)
+
       body = {
         chain_id: opportunity.chainId,
         version: "v1" as const,
@@ -434,7 +434,7 @@ export class Client {
     });
     if (response.error) {
       throw ClientError.newHttpError(
-        response.error.error,
+        response.error.toString(),
         response.response.status
       );
     }