diff --git a/opensearch/src/main/java/org/opensearch/sql/opensearch/request/system/OpenSearchDescribeIndexRequest.java b/opensearch/src/main/java/org/opensearch/sql/opensearch/request/system/OpenSearchDescribeIndexRequest.java
index 5fbe989542..5e96ad83c5 100644
--- a/opensearch/src/main/java/org/opensearch/sql/opensearch/request/system/OpenSearchDescribeIndexRequest.java
+++ b/opensearch/src/main/java/org/opensearch/sql/opensearch/request/system/OpenSearchDescribeIndexRequest.java
@@ -140,6 +140,6 @@ private String clusterName(Map<String, String> meta) {
 
   @Override
   public String toString() {
-    return "OpenSearchDescribeIndexRequest{indexName='" + indexName + '\'}';
+    return "OpenSearchDescribeIndexRequest{indexName='" + indexName + "\'}";
   }
 }