diff --git a/README.md b/README.md
index 2bc7d55..3b5faaa 100644
--- a/README.md
+++ b/README.md
@@ -190,7 +190,7 @@ The final step is to actually run a job.
 example_job.builder()
     // This is where we can override job configuration
     .set_channel_name("bar")
-    .set_json("John")
+    .set_json("John")?
     .spawn(&pool)
     .await?;
 ```