diff --git a/br/br-pitr-manual.md b/br/br-pitr-manual.md
index de355300189d2..377a69ea271fd 100644
--- a/br/br-pitr-manual.md
+++ b/br/br-pitr-manual.md
@@ -290,7 +290,7 @@ Usage example:
 
 ```shell
 ./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}'
 ```
 
 Expected output:
@@ -330,7 +330,7 @@ The `--storage` parameter is used to specify the backup storage address. Current
 Usage example:
 
 ```shell
-./br log metadata –-storage='s3://backup-101/logbackup?access-key=${access-key}&secret-access-key=${secret-access-key}"'
+./br log metadata --storage='s3://backup-101/logbackup?access-key=${access-key}&secret-access-key=${secret-access-key}'
 ```
 
 Expected output:
@@ -381,7 +381,7 @@ Usage example:
 ```shell
 ./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=${secret-access-key}"'
+--full-backup-storage='s3://backup-101/snapshot-202205120000?access-key=${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]