diff --git a/performance_measurement/measure_runner.py b/performance_measurement/measure_runner.py
index ccd70e664..4520e7774 100644
--- a/performance_measurement/measure_runner.py
+++ b/performance_measurement/measure_runner.py
@@ -267,7 +267,7 @@ def run(self,
                             continue
 
                     if condition_2 is None:
-                        if (event["object"].status.ready_replicas == input["spec"]["replicas"]
+                        if (event["object"].status.ready_replicas == event["object"].spec.replicas
                                 and event["object"].status.current_revision == last_revision):
                             condition_2 = timestamp
                             break