diff --git a/substrate/serai/client/tests/runner.rs b/substrate/serai/client/tests/runner.rs
index 1e9e7444..777d5700 100644
--- a/substrate/serai/client/tests/runner.rs
+++ b/substrate/serai/client/tests/runner.rs
@@ -106,6 +106,9 @@ macro_rules! serai_test {
           while Serai::new(URL).await.is_err() {
             tokio::time::sleep(Duration::from_secs(1)).await;
           }
+          while Serai::new(URL).await.unwrap().get_latest_block_hash().await.is_err() {
+            tokio::time::sleep(Duration::from_secs(1)).await;
+          }
           command
         };