--- a/embedding/components/printingui/ipc/PrintingParent.cpp
+++ b/embedding/components/printingui/ipc/PrintingParent.cpp
@@ -258,17 +258,17 @@ PrintingParent::SerializeAndEnsureRemote
     printSettings = aPrintSettings;
   } else {
     rv = mPrintSettingsSvc->GetNewPrintSettings(getter_AddRefs(printSettings));
     if (NS_WARN_IF(NS_FAILED(rv))) {
       return rv;
     }
   }
 
-  rv = mPrintSettingsSvc->SerializeToPrintData(aPrintSettings, nullptr,
+  rv = mPrintSettingsSvc->SerializeToPrintData(printSettings, nullptr,
                                                aPrintData);
   if (NS_WARN_IF(NS_FAILED(rv))) {
     return rv;
   }
 
   RemotePrintJobParent* remotePrintJob;
   if (aRemotePrintJob) {
     remotePrintJob = aRemotePrintJob;