diff --git a/fuzz/fuzz_targets/fuzz_write.rs b/fuzz/fuzz_targets/fuzz_write.rs
index 0e1d57fe..eb700cf9 100644
--- a/fuzz/fuzz_targets/fuzz_write.rs
+++ b/fuzz/fuzz_targets/fuzz_write.rs
@@ -4,18 +4,10 @@ use libfuzzer_sys::fuzz_target;
 use arbitrary::Arbitrary;
 use std::io::{Cursor, Read, Seek, Write};
 
-#[derive(Arbitrary,Debug)]
-pub struct ExtraData {
-    pub header_id: u16,
-    pub data: Vec<u8>
-}
-
 #[derive(Arbitrary,Debug)]
 pub struct File {
     pub name: String,
-    pub contents: Vec<Vec<u8>>,
-    pub local_extra_data: Vec<ExtraData>,
-    pub central_extra_data: Vec<ExtraData>
+    pub contents: Vec<Vec<u8>>
 }
 
 #[derive(Arbitrary,Debug)]