diff --git a/src/config/watch/fs.rs b/src/config/watch/fs.rs
index 06cd7137d5..6da87f653c 100644
--- a/src/config/watch/fs.rs
+++ b/src/config/watch/fs.rs
@@ -84,7 +84,7 @@ mod tests {
         });
 
         std::fs::write(&file_path, serde_yaml::to_string(&source).unwrap()).unwrap();
-        tokio::time::sleep(std::time::Duration::from_millis(250)).await;
+        tokio::time::sleep(std::time::Duration::from_millis(500)).await;
 
         assert_eq!(source, dest);
     }
diff --git a/src/xds.rs b/src/xds.rs
index fd76331ed2..4fe0c9a1d3 100644
--- a/src/xds.rs
+++ b/src/xds.rs
@@ -289,6 +289,7 @@ mod tests {
     async fn basic() {
         let config: Arc<Config> = serde_json::from_value(serde_json::json!({
             "version": "v1alpha1",
+            "admin": null,
             "proxy": {
                 "id": "test-proxy",
                 "port": 23456u16,