diff --git a/packages/functions/src/aggregator/handle-buffer-queue-message.js b/packages/functions/src/aggregator/handle-buffer-queue-message.js
index 79f752c..cd8ac87 100644
--- a/packages/functions/src/aggregator/handle-buffer-queue-message.js
+++ b/packages/functions/src/aggregator/handle-buffer-queue-message.js
@@ -24,6 +24,15 @@ Sentry.AWSLambda.init({
  * @param {import('aws-lambda').SQSEvent} sqsEvent
  */
 async function handleBufferQueueMessage (sqsEvent) {
+  // if one we should put back in queue
+  if (sqsEvent.Records.length === 1) {
+    return {
+      batchItemFailures: sqsEvent.Records.map(r => ({
+        itemIdentifier: r.messageId
+      }))
+    }
+  }
+
   // unexpected number of records
   if (sqsEvent.Records.length !== 2) {
     return {