diff --git a/json_tokener.h b/json_tokener.h
index 77abc5c..cdac3e2 100644
--- a/json_tokener.h
+++ b/json_tokener.h
@@ -40,8 +40,8 @@ enum json_tokener_error
 	json_tokener_error_parse_string,
 	json_tokener_error_parse_comment,
 	json_tokener_error_parse_utf8_string,
-	json_tokener_error_memory,
-	json_tokener_error_size
+	json_tokener_error_size,   /* A string longer than INT32_MAX was passed as input */
+	json_tokener_error_memory  /* Failed to allocate memory */
 };
 
 /**