diff --git a/components/script/dom/filereader.rs b/components/script/dom/filereader.rs
index 634f2facafe..be57d67f7c0 100644
--- a/components/script/dom/filereader.rs
+++ b/components/script/dom/filereader.rs
@@ -380,6 +380,8 @@ pub enum FileReaderEvent {
 }
 
 impl Runnable for FileReaderEvent {
+    fn name(&self) -> &'static str { "FileReaderEvent" }
+
     fn handler(self: Box<FileReaderEvent>) {
         let file_reader_event = *self;
         match file_reader_event {