diff --git a/services/response_code.proto b/services/response_code.proto
index 232d180f..08d0ecff 100644
--- a/services/response_code.proto
+++ b/services/response_code.proto
@@ -1505,10 +1505,10 @@ enum ResponseCodeEnum {
      */
     INVALID_OWNER_ID = 354;
 
-  /**
-   * The transaction attempted to use more than the allowed number of `TokenReference`.
-   */
-  TOKEN_REFERENCE_LIST_SIZE_LIMIT_EXCEEDED = 355;
+    /**
+     * The transaction attempted to use more than the allowed number of `TokenReference`.
+     */
+    TOKEN_REFERENCE_LIST_SIZE_LIMIT_EXCEEDED = 355;
 
     /**
      * The number of service endpoints exceeds the limit