diff --git a/qa/full-cluster-restart/src/test/java/org/elasticsearch/upgrades/FullClusterRestartIT.java b/qa/full-cluster-restart/src/test/java/org/elasticsearch/upgrades/FullClusterRestartIT.java
index 2983312ff95c0..524d163de626d 100644
--- a/qa/full-cluster-restart/src/test/java/org/elasticsearch/upgrades/FullClusterRestartIT.java
+++ b/qa/full-cluster-restart/src/test/java/org/elasticsearch/upgrades/FullClusterRestartIT.java
@@ -65,7 +65,7 @@
 public class FullClusterRestartIT extends ESRestTestCase {
     private final boolean runningAgainstOldCluster = Booleans.parseBoolean(System.getProperty("tests.is_old_cluster"));
     private final Version oldClusterVersion = Version.fromString(System.getProperty("tests.old_cluster_version"));
-    private final boolean supportsLenientBooleans = oldClusterVersion.onOrAfter(Version.V_6_0_0_alpha1);
+    private final boolean supportsLenientBooleans = oldClusterVersion.before(Version.V_6_0_0_alpha1);
     private static final Version VERSION_5_1_0_UNRELEASED = Version.fromString("5.1.0");
 
     private String index;