diff --git a/components/lib/fileupload/FileUpload.js b/components/lib/fileupload/FileUpload.js
index eba2380c8b..3b0f85ec76 100644
--- a/components/lib/fileupload/FileUpload.js
+++ b/components/lib/fileupload/FileUpload.js
@@ -73,7 +73,7 @@ export const FileUpload = React.memo(
 
         const onFileSelect = (event) => {
             // give caller a chance to stop the selection
-            if (props.onBeforeSelect && props.onBeforeSelect(event) === false) {
+            if (props.onBeforeSelect && props.onBeforeSelect({ originalEvent: event, files: filesState }) === false) {
                 return;
             }
 
diff --git a/components/lib/fileupload/fileupload.d.ts b/components/lib/fileupload/fileupload.d.ts
index 6d836e8988..f9a4dec3c5 100644
--- a/components/lib/fileupload/fileupload.d.ts
+++ b/components/lib/fileupload/fileupload.d.ts
@@ -59,7 +59,7 @@ interface FileUploadUploadParams extends FileUploadFilesParam {
 interface FileUploadErrorParams extends FileUploadUploadParams {}
 
 interface FileUploadSelectParams extends FileUploadFilesParam {
-    originalEvent: React.SyntheticEvent;
+    originalEvent: React.ChangeEvent<HTMLInputElement> | DragEvent;
 }
 
 interface FileUploadProgressParams {