diff --git a/web_src/js/components/MinioUploader.vue b/web_src/js/components/MinioUploader.vue
index 12edccb7c..ce059f421 100755
--- a/web_src/js/components/MinioUploader.vue
+++ b/web_src/js/components/MinioUploader.vue
@@ -187,6 +187,7 @@ export default {
           File.prototype.mozSlice ||
           File.prototype.webkitSlice,
         chunkSize = 1024 * 1024 * 64,
+        smallChunkSize = 1024 * 1024 * 1,
         chunks = Math.ceil(file.size / chunkSize),
         spark = new SparkMD5.ArrayBuffer(),
         fileReader = new FileReader();
@@ -236,7 +237,9 @@ export default {
         const start = currentChunk * chunkSize;
         const end =
           start + chunkSize >= file.size ? file.size : start + chunkSize;
-        fileReader.readAsArrayBuffer(blobSlice.call(file, start, end));
+        const smallEnd =
+          start + smallChunkSize >= file.size ? file.size : start + smallChunkSize;
+        fileReader.readAsArrayBuffer(blobSlice.call(file, start, smallEnd));
       }
     },