diff --git a/lib/wasi-tests/wasitests/fd_append.rs b/lib/wasi-tests/wasitests/fd_append.rs
index f1e55c5ed9a..2e311652e4d 100644
--- a/lib/wasi-tests/wasitests/fd_append.rs
+++ b/lib/wasi-tests/wasitests/fd_append.rs
@@ -35,14 +35,17 @@ fn main() {
         file_handle.write(STR2.as_bytes()).unwrap();
     }
 
-    let mut file_handle = OpenOptions::new()
-        .read(true)
-        .open(&file)
-        .expect("Couldn't reopen file to read");
+    {
+        let mut file_handle = OpenOptions::new()
+            .read(true)
+            .open(&file)
+            .expect("Couldn't reopen file to read");
 
-    let mut test = String::new();
-    file_handle.read_to_string(&mut test);
+        let mut test = String::new();
+        file_handle.read_to_string(&mut test);
 
-    assert_eq!(&test, &format!("{}{}", STR1, STR2));
-    println!("{:?}", &test);
+        assert_eq!(&test, &format!("{}{}", STR1, STR2));
+        println!("{:?}", &test);
+    }
+    std::fs::remove_file(&file).unwrap();
 }
diff --git a/lib/wasi-tests/wasitests/fd_append.wasm b/lib/wasi-tests/wasitests/fd_append.wasm
index b1c73d14fab..af40f8af9c1 100755
Binary files a/lib/wasi-tests/wasitests/fd_append.wasm and b/lib/wasi-tests/wasitests/fd_append.wasm differ