diff --git a/server/src/test/java/org/elasticsearch/rest/RestControllerTests.java b/server/src/test/java/org/elasticsearch/rest/RestControllerTests.java
index 348b85a8ba4..cbf55428971 100644
--- a/server/src/test/java/org/elasticsearch/rest/RestControllerTests.java
+++ b/server/src/test/java/org/elasticsearch/rest/RestControllerTests.java
@@ -81,6 +81,8 @@ public class RestControllerTests extends ESTestCase {
         circuitBreakerService = new HierarchyCircuitBreakerService(
             Settings.builder()
                 .put(HierarchyCircuitBreakerService.IN_FLIGHT_REQUESTS_CIRCUIT_BREAKER_LIMIT_SETTING.getKey(), BREAKER_LIMIT)
+                // We want to have reproducible results in this test, hence we disable real memory usage accounting
+                .put(HierarchyCircuitBreakerService.USE_REAL_MEMORY_USAGE_SETTING.getKey(), false)
                 .build(),
             new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS));
         usageService = new UsageService(settings);