diff --git a/src/connectors/rubicon/rubicon.ts b/src/connectors/rubicon/rubicon.ts
index ede190654f..2dd10e7a39 100644
--- a/src/connectors/rubicon/rubicon.ts
+++ b/src/connectors/rubicon/rubicon.ts
@@ -396,7 +396,7 @@ export class RubiconCLOB implements CLOBish {
       .build()
 
     const serializedOrder = order.serialize();
-    const signature = this.signOrder(order, req.address)
+    const signature = await this.signOrder(order, req.address)
 
     const payload = {
       encodedOrder: serializedOrder,