diff --git a/ckeditor/ckeditor.d.ts b/ckeditor/ckeditor.d.ts
index bba377090f..9d8728338f 100644
--- a/ckeditor/ckeditor.d.ts
+++ b/ckeditor/ckeditor.d.ts
@@ -641,7 +641,7 @@ declare namespace CKEDITOR {
         filebrowserImageBrowseLinkUrl?: string;
         filebrowserImageBrowseUrl?: string;
         filebrowserImageUploadUrl?: string;
-        filebrowserUploadUr?: string;
+        filebrowserUploadUrl?: string;
         filebrowserWindowFeatures?: string;
         filebrowserWindowHeight?: number | string;
         filebrowserWindowWidth?: number | string;