diff --git a/src/FileUploader/FileUploaderDropContainer.svelte b/src/FileUploader/FileUploaderDropContainer.svelte
index 2422d570..b5eb42af 100644
--- a/src/FileUploader/FileUploaderDropContainer.svelte
+++ b/src/FileUploader/FileUploaderDropContainer.svelte
@@ -1,6 +1,6 @@
 <script>
   /**
-   * @event {FileList} add
+   * @event {File} add
    */
 
   /**
@@ -15,7 +15,7 @@
   /**
    * Override the default behavior of validating uploaded files
    * The default behavior does not validate files
-   * @type {(files: FileList) => FileList}
+   * @type {(files: File) => File}
    */
   export let validateFiles = (files) => files;
 
@@ -68,7 +68,7 @@
   on:drop|preventDefault|stopPropagation="{({ dataTransfer }) => {
     if (!disabled) {
       over = false;
-      dispatch('add', validateFiles(dataTransfer.files));
+      dispatch('add', validateFiles([...dataTransfer.files]));
     }
   }}"
 >
@@ -106,7 +106,7 @@
     class:bx--file-input="{true}"
     on:change
     on:change="{({ target }) => {
-      dispatch('add', validateFiles(target.files));
+      dispatch('add', validateFiles([...target.files]));
     }}"
     on:click
     on:click="{({ target }) => {