diff --git a/src/modals/ImportExportModal.js b/src/modals/ImportExportModal.js
index f57e3f7..cb134d2 100644
--- a/src/modals/ImportExportModal.js
+++ b/src/modals/ImportExportModal.js
@@ -206,11 +206,12 @@ function ImportExportModal({ isOpen, onRequestClose }) {
     const tokenIds = checkedTokens.map((token) => token.id);
 
     try {
-      const blob = await worker.exportData(
+      const buffer = await worker.exportData(
         Comlink.proxy(handleDBProgress),
         mapIds,
         tokenIds
       );
+      const blob = new Blob([buffer]);
       saveAs(blob, `${shortid.generate()}.owlbear`);
       addSuccessToast("Exported", checkedMaps, checkedTokens);
     } catch (e) {
diff --git a/src/workers/DatabaseWorker.js b/src/workers/DatabaseWorker.js
index bb47f64..28d6c9c 100644
--- a/src/workers/DatabaseWorker.js
+++ b/src/workers/DatabaseWorker.js
@@ -7,6 +7,7 @@ import {
 import { encode, decode } from "@msgpack/msgpack";
 
 import { getDatabase } from "../database";
+import blobToBuffer from "../helpers/blobToBuffer";
 
 // Worker to load large amounts of database data on a separate thread
 let service = {
@@ -92,7 +93,10 @@ let service = {
       numRowsPerChunk: 1,
       prettyJson: true,
     });
-    return data;
+
+    const buffer = await blobToBuffer(data);
+
+    return Comlink.transfer(buffer, [buffer.buffer]);
   },
 
   /**