diff --git a/src/share/inner_table/ob_inner_table_schema.12401_12450.cpp b/src/share/inner_table/ob_inner_table_schema.12401_12450.cpp
index 4653dd20a4..7d6a97d14f 100644
--- a/src/share/inner_table/ob_inner_table_schema.12401_12450.cpp
+++ b/src/share/inner_table/ob_inner_table_schema.12401_12450.cpp
@@ -580,7 +580,7 @@ int ObInnerTableSchema::all_virtual_tablet_buffer_info_schema(ObTableSchema &tab
   }
 
   if (OB_SUCC(ret)) {
-    ADD_COLUMN_SCHEMA("tablet buffer", //column_name
+    ADD_COLUMN_SCHEMA("tablet_buffer", //column_name
       ++column_id, //column_id
       4, //rowkey_id
       0, //index_id
@@ -610,7 +610,7 @@ int ObInnerTableSchema::all_virtual_tablet_buffer_info_schema(ObTableSchema &tab
   }
 
   if (OB_SUCC(ret)) {
-    ADD_COLUMN_SCHEMA("pool type", //column_name
+    ADD_COLUMN_SCHEMA("pool_type", //column_name
       ++column_id, //column_id
       0, //rowkey_id
       0, //index_id
diff --git a/src/share/inner_table/ob_inner_table_schema_def.py b/src/share/inner_table/ob_inner_table_schema_def.py
index e555938ccc..e230b0e1f6 100644
--- a/src/share/inner_table/ob_inner_table_schema_def.py
+++ b/src/share/inner_table/ob_inner_table_schema_def.py
@@ -12243,12 +12243,12 @@ def_table_schema(
   ('svr_ip', 'varchar:MAX_IP_ADDR_LENGTH'),
   ('svr_port', 'int'),
   ('tenant_id', 'int'),
-  ('tablet buffer', 'varchar:128'),
+  ('tablet_buffer', 'varchar:128'),
   ],
 
   normal_columns = [
   ('tablet', 'varchar:128'),
-	('pool type', 'varchar:128'),
+	('pool_type', 'varchar:128'),
   ('ls_id', 'int'),
   ('tablet_id', 'int'),
   ('in_map', 'bool'),