diff --git a/test/framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java b/test/framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java
index 20240b26209..58c40796738 100644
--- a/test/framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java
+++ b/test/framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java
@@ -448,10 +448,10 @@ public abstract class ESIntegTestCase extends ESTestCase {
         }
 
         if (random.nextBoolean()) {
-            builder.put(IndexSettings.INDEX_CHECK_ON_STARTUP.getKey(), randomFrom("false", "checksum", "true"));
+            builder.put(IndexSettings.INDEX_CHECK_ON_STARTUP.getKey(), randomFrom(random, "false", "checksum", "true"));
         }
 
-        if (randomBoolean()) {
+        if (random.nextBoolean()) {
             // keep this low so we don't stall tests
             builder.put(UnassignedInfo.INDEX_DELAYED_NODE_LEFT_TIMEOUT_SETTING.getKey(),
                     RandomNumbers.randomIntBetween(random, 1, 15) + "ms");