diff --git a/src/main/java/org/opensearch/security/privileges/SystemIndexAccessEvaluator.java b/src/main/java/org/opensearch/security/privileges/SystemIndexAccessEvaluator.java
index 0f5ec9a1bc..38825a9bf1 100644
--- a/src/main/java/org/opensearch/security/privileges/SystemIndexAccessEvaluator.java
+++ b/src/main/java/org/opensearch/security/privileges/SystemIndexAccessEvaluator.java
@@ -179,7 +179,7 @@ private Set<String> getAllSystemIndices(final Resolved requestedResolved) {
             .collect(Collectors.toSet());
         if (isSystemIndexEnabled) {
             systemIndices.addAll(systemIndexMatcher.getMatchAny(requestedResolved.getAllIndices(), Collectors.toList()));
-            systemIndices.addAll(SystemIndexRegistry.matchesSystemIndexPattern(requestedResolved.getAllIndices().toArray(String[]::new)));
+            systemIndices.addAll(SystemIndexRegistry.matchesSystemIndexPattern(requestedResolved.getAllIndices()));
         }
         return systemIndices;
     }