diff --git a/neqo-bin/src/client/mod.rs b/neqo-bin/src/client/mod.rs
index 02e051c236..be2c4219d7 100644
--- a/neqo-bin/src/client/mod.rs
+++ b/neqo-bin/src/client/mod.rs
@@ -390,6 +390,8 @@ struct Runner<'a, H: Handler> {
 impl<'a, H: Handler> Runner<'a, H> {
     async fn run(mut self) -> Res<Option<ResumptionToken>> {
         loop {
+            self.process_output().await?;
+
             let handler_done = self.handler.handle(&mut self.client)?;
 
             match (handler_done, self.args.resume, self.handler.has_token()) {