diff --git a/docs/en/14-reference/06-taosdump.md b/docs/en/14-reference/06-taosdump.md
index 6d5547e7a9..baf07d6b9e 100644
--- a/docs/en/14-reference/06-taosdump.md
+++ b/docs/en/14-reference/06-taosdump.md
@@ -102,6 +102,8 @@ Usage: taosdump [OPTION...] dbname [tbname ...]
   -L, --loose-mode           Use loose mode if the table name and column name
                              use letter and number only. Default is NOT.
   -n, --no-escape            No escape char '`'. Default is using it.
+  -Q, --dot-replace          Repalce dot character with underline character in
+                             the table name.
   -T, --thread-num=THREAD_NUM   Number of thread for dump in file. Default is
                              8.
   -C, --cloud=CLOUD_DSN      specify a DSN to access TDengine cloud service