diff --git a/br/br-pitr-manual.md b/br/br-pitr-manual.md
index f406757b8fc1..aa36fc257a1e 100644
--- a/br/br-pitr-manual.md
+++ b/br/br-pitr-manual.md
@@ -356,7 +356,7 @@ Global Flags:
 
 ```shell
 tiup br log truncate --until='2022-07-26 21:20:00+0800' \
-–-storage='s3://backup-101/logbackup?access-key=${access-key}&secret-access-key=${secret-access-key}"'
+--storage='s3://backup-101/logbackup?access-key=${access-key}&secret-access-key=${secret-access-key}'
 ```
 
 该子命令运行后输出以下信息：
@@ -396,7 +396,7 @@ Global Flags:
 使用示例：
 
 ```shell
-tiup br log metadata –-storage='s3://backup-101/logbackup?access-key=${access-key}&secret-access-key=${secret-access-key}"'
+tiup br log metadata --storage='s3://backup-101/logbackup?access-key=${access-key}&secret-access-key=${secret-access-key}'
 ```
 
 该子命令运行后输出以下信息：
@@ -450,8 +450,8 @@ Global Flags:
 
 ```shell
 tiup br restore point --pd="${PD_IP}:2379"
---storage='s3://backup-101/logbackup?access-key=${access-key}&secret-access-key=${secret-access-key}"'
---full-backup-storage='s3://backup-101/snapshot-202205120000?access-key=${access-key}&secret-access-key=${secret-access-key}"'
+--storage='s3://backup-101/logbackup?access-key=${access-key}&secret-access-key=${secret-access-key}'
+--full-backup-storage='s3://backup-101/snapshot-202205120000?access-key=${access-key}&secret-access-key=${secret-access-key}'
 
 Full Restore <--------------------------------------------------------------------------------------------------------------------------------------------------------> 100.00%
 *** ***["Full Restore success summary"] ****** [total-take=3.112928252s] [restore-data-size(after-compressed)=5.056kB] [Size=5056] [BackupTS=434693927394607136] [total-kv=4] [total-kv-size=290B] [average-speed=93.16B/s]
@@ -474,8 +474,8 @@ Restore KV Files <--------------------------------------------------------------
 
 ```shell
 tiup br restore point --pd="${PD_IP}:2379"
---storage='s3://backup-101/logbackup?access-key=${ACCESS-KEY}&secret-access-key=${SECRET-ACCESS-KEY}"'
---full-backup-storage='s3://backup-101/snapshot-202205120000?access-key=${ACCESS-KEY}&secret-access-key=${SECRET-ACCESS-KEY}"'
+--storage='s3://backup-101/logbackup?access-key=${ACCESS-KEY}&secret-access-key=${SECRET-ACCESS-KEY}'
+--full-backup-storage='s3://backup-101/snapshot-202205120000?access-key=${ACCESS-KEY}&secret-access-key=${SECRET-ACCESS-KEY}'
 --crypter.method aes128-ctr
 --crypter.key 0123456789abcdef0123456789abcdef
 --log.crypter.method aes128-ctr
@@ -486,8 +486,8 @@ tiup br restore point --pd="${PD_IP}:2379"
 
 ```shell
 tiup br restore point --pd="${PD_IP}:2379"
---storage='s3://backup-101/logbackup?access-key=${ACCESS-KEY}&secret-access-key=${SECRET-ACCESS-KEY}"'
---full-backup-storage='s3://backup-101/snapshot-202205120000?access-key=${ACCESS-KEY}&secret-access-key=${SECRET-ACCESS-KEY}"'
+--storage='s3://backup-101/logbackup?access-key=${ACCESS-KEY}&secret-access-key=${SECRET-ACCESS-KEY}'
+--full-backup-storage='s3://backup-101/snapshot-202205120000?access-key=${ACCESS-KEY}&secret-access-key=${SECRET-ACCESS-KEY}'
 --crypter.method aes128-ctr
 --crypter.key 0123456789abcdef0123456789abcdef
 --master-key-crypter-method aes128-ctr