diff --git a/core/my_basic.h b/core/my_basic.h
index 74ef604..c01fe7c 100755
--- a/core/my_basic.h
+++ b/core/my_basic.h
@@ -214,6 +214,7 @@ typedef enum mb_error_e {
 	SE_RN_INVALID_DATA_TYPE,
 	SE_RN_TYPE_NOT_MATCH,
 	SE_RN_INVALID_STRING,
+	SE_RN_INDEX_OUT_OF_BOUND,
 	SE_RN_ILLEGAL_BOUND,
 	SE_RN_DIMENSION_TOO_MUCH,
 	SE_RN_OPERATION_FAILED,