diff --git a/src/bin/gs_guc/cluster_guc.conf b/src/bin/gs_guc/cluster_guc.conf
index 67ec541d0..986e134d3 100755
--- a/src/bin/gs_guc/cluster_guc.conf
+++ b/src/bin/gs_guc/cluster_guc.conf
@@ -748,8 +748,8 @@ dolphin_server_port|int|1024,65535|NULL|NULL|
 enable_dolphin_proto|bool|0,0|NULL|NULL|
 enable_remote_excute|bool|0,0|NULL|NULL|
 light_comm|bool|0,0|NULL|NULL|
-ignore_standby_lsn_window|int|0,2147483647|s|NULL|
-ignore_feedback_xmin_window|int|0,2147483647|s|NULL|
+ignore_standby_lsn_window|int|0,2147483647|ms|NULL|
+ignore_feedback_xmin_window|int|0,2147483647|ms|NULL|
 [cmserver]
 log_dir|string|0,0|NULL|NULL|
 log_file_size|int|0,2047|MB|NULL|