--- a/toolkit/components/payments/content/paymentDialogWrapper.js
+++ b/toolkit/components/payments/content/paymentDialogWrapper.js
@@ -253,21 +253,18 @@ var paymentDialogWrapper = {
     });
   },
 
   updateRequest() {
     // There is no need to update this.request since the object is live
     // and will automatically get updated if event.updateWith is used.
     let requestSerialized = this._serializeRequest(this.request);
 
-    this.mm.sendAsyncMessage("paymentChromeToContent", {
-      messageType: "updateState",
-      data: {
-        request: requestSerialized,
-      },
+    this.sendMessageToContent("updateState", {
+      request: requestSerialized,
     });
   },
 
   /**
    * Recursively convert and filter input to the subset of data types supported by JSON
    *
    * @param {*} value - any type of input to serialize
    * @param {string?} name - name or key associated with this input.