diff --git a/driver.go b/driver.go
index 6aba86ed8b..e4411021cd 100644
--- a/driver.go
+++ b/driver.go
@@ -146,7 +146,7 @@ func parseDriverDSN(dsn string) (storePath, dbName string, err error) {
 
 // Open returns a new connection to the database.
 //
-// The dsn must be formatted as an URL 'engine://path/dbname?params'.
+// The dsn must be a URL format 'engine://path/dbname?params'.
 // Engine is the storage name registered with RegisterStore.
 // Path is the storage specific format.
 // Params is key-value pairs split by '&', optional params are storage specific.
diff --git a/store/hbase/kv.go b/store/hbase/kv.go
index 2df7b8bf07..4ab80d4bfe 100644
--- a/store/hbase/kv.go
+++ b/store/hbase/kv.go
@@ -151,8 +151,8 @@ func (d Driver) Open(path string) (kv.Storage, error) {
 	if err != nil {
 		return nil, errors.Trace(err)
 	}
-	uuid := fmt.Sprintf("hbase-%v-%v", zks, tableName)
 
+	uuid := fmt.Sprintf("hbase-%v-%v", zks, tableName)
 	if store, ok := mc.cache[uuid]; ok {
 		if oracleAddr != store.oracleAddr {
 			return nil, errors.Errorf("store(%s) is opened with a different tso(%v)", uuid, store.oracleAddr)
diff --git a/store/localstore/kv.go b/store/localstore/kv.go
index 8cdd1332df..46e1939b86 100644
--- a/store/localstore/kv.go
+++ b/store/localstore/kv.go
@@ -285,7 +285,7 @@ func IsLocalStore(s kv.Storage) bool {
 }
 
 // Open opens or creates a storage with specific format for a local engine Driver.
-// The path should be formatted as an URL which is described in tidb package.
+// The path should be a URL format which is described in tidb package.
 func (d Driver) Open(path string) (kv.Storage, error) {
 	mc.mu.Lock()
 	defer mc.mu.Unlock()
diff --git a/tidb.go b/tidb.go
index 3fa7d25a2c..792fdd7681 100644
--- a/tidb.go
+++ b/tidb.go
@@ -297,8 +297,8 @@ func RegisterLocalStore(name string, driver engine.Driver) error {
 
 // NewStore creates a kv Storage with path.
 //
-// The path must be formatted as an URL 'engine://path?params' like the one for tidb.Open() but
-// with the dbname cut off.
+// The path must be a URL format 'engine://path?params' like the one for
+// tidb.Open() but with the dbname cut off.
 // Examples:
 //    goleveldb://relative/path
 //    boltdb:///absolute/path