diff --git a/server/src/internalClusterTest/java/org/opensearch/remotestore/WritableWarmIT.java b/server/src/internalClusterTest/java/org/opensearch/remotestore/WritableWarmIT.java
index a51bd6b20fff0..08eef8dc8c945 100644
--- a/server/src/internalClusterTest/java/org/opensearch/remotestore/WritableWarmIT.java
+++ b/server/src/internalClusterTest/java/org/opensearch/remotestore/WritableWarmIT.java
@@ -80,7 +80,7 @@ public void testWritableWarmFeatureFlagDisabled() {
         try {
             prepareCreate(INDEX_NAME).setSettings(indexSettings).get();
             fail("Should have thrown Exception as setting should not be registered if Feature Flag is Disabled");
-        } catch (SettingsException ex) {
+        } catch (SettingsException | IllegalArgumentException ex) {
             assertEquals(
                 "unknown setting ["
                     + IndexModule.INDEX_STORE_LOCALITY_SETTING.getKey()