diff --git a/examples/sst-demo.rs b/examples/sst-demo.rs
index 6b588e0e..86f8911c 100644
--- a/examples/sst-demo.rs
+++ b/examples/sst-demo.rs
@@ -410,7 +410,6 @@ fn prepare_keygen(args: &ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
     // and append
     let mut intermed_node_file = OpenOptions::new()
         .create(true)
-        .write(true)
         .append(true)
         .open(interm_node_filename.as_str())
         .unwrap();