diff --git a/prepare.py b/prepare.py
index d8f726540a0df4c4be480a425a49230158ca4d56..2f9f2aff2b7a69bdbf630932eb9597170617e937 100644
--- a/prepare.py
+++ b/prepare.py
@@ -43,7 +43,7 @@ def provision_server(
             break
         except openstack.exceptions.ResourceTimeout as e:
             time_difference = time.time() - start_time
-            print(f"Waiting for server to start ({time_difference}s)")
+            print(f"Waiting for server to start ({time_difference}s)", flush=True)
             if time_difference > 500:
                 raise e