diff --git a/pkg/cluster/api/binlog.go b/pkg/cluster/api/binlog.go
index 3705b6c56a..40d64bbc80 100644
--- a/pkg/cluster/api/binlog.go
+++ b/pkg/cluster/api/binlog.go
@@ -56,12 +56,12 @@ func NewBinlogClient(pdEndpoint []string, tlsConfig *tls.Config) (*BinlogClient,
 }
 
 func (c *BinlogClient) getURL(addr string) string {
-	schema := "http"
+	scheme := "http"
 	if c.tls != nil {
-		schema = "https"
+		scheme = "https"
 	}
 
-	return fmt.Sprintf("%s://%s", schema, addr)
+	return fmt.Sprintf("%s://%s", scheme, addr)
 }
 
 func (c *BinlogClient) getOfflineURL(addr string, nodeID string) string {
diff --git a/pkg/cluster/manager/display.go b/pkg/cluster/manager/display.go
index 65e7b4c104..baabb8e185 100644
--- a/pkg/cluster/manager/display.go
+++ b/pkg/cluster/manager/display.go
@@ -109,11 +109,11 @@ func (m *Manager) Display(name string, opt operator.Options) error {
 		var err error
 		dashboardAddr, err = t.GetDashboardAddress(tlsCfg, masterActive...)
 		if dashboardAddr != "" && err == nil {
-			schema := "http"
+			scheme := "http"
 			if tlsCfg != nil {
-				schema = "https"
+				scheme = "https"
 			}
-			fmt.Printf("Dashboard URL:      %s\n", cyan.Sprintf("%s://%s/dashboard", schema, dashboardAddr))
+			fmt.Printf("Dashboard URL:      %s\n", cyan.Sprintf("%s://%s/dashboard", scheme, dashboardAddr))
 		}
 	}
 
diff --git a/pkg/cluster/spec/grafana.go b/pkg/cluster/spec/grafana.go
index ac403bd472..a21b09257b 100644
--- a/pkg/cluster/spec/grafana.go
+++ b/pkg/cluster/spec/grafana.go
@@ -16,7 +16,6 @@ package spec
 import (
 	"crypto/tls"
 	"fmt"
-	"path"
 	"path/filepath"
 	"reflect"
 	"strings"
@@ -220,10 +219,12 @@ func (i *GrafanaInstance) initDashboards(e executor.Executor, spec GrafanaSpec,
 	for _, cmd := range []string{
 		`find %s -type f -exec sed -i "s/\${DS_.*-CLUSTER}/%s/g" {} \;`,
 		`find %s -type f -exec sed -i "s/DS_.*-CLUSTER/%s/g" {} \;`,
+		`find %s -type f -exec sed -i "s/\${DS_LIGHTNING}/%s/g" {} \;`,
+		`find %s -type f -exec sed -i "s/DS_LIGHTNING/%s/g" {} \;`,
 		`find %s -type f -exec sed -i "s/test-cluster/%s/g" {} \;`,
 		`find %s -type f -exec sed -i "s/Test-Cluster/%s/g" {} \;`,
 	} {
-		cmd := fmt.Sprintf(cmd, path.Join(paths.Deploy, "dashboards"), clusterName)
+		cmd := fmt.Sprintf(cmd, dashboardsDir, clusterName)
 		_, stderr, err := e.Execute(cmd, false)
 		if err != nil {
 			return errors.Annotatef(err, "stderr: %s", string(stderr))
diff --git a/pkg/cluster/spec/validate.go b/pkg/cluster/spec/validate.go
index e6ac3a346e..749ac96f4a 100644
--- a/pkg/cluster/spec/validate.go
+++ b/pkg/cluster/spec/validate.go
@@ -346,7 +346,7 @@ func (e *TiKVLabelError) Error() string {
 	return str
 }
 
-// TiKVLabelProvider provide store labels information
+// TiKVLabelProvider provides the store labels information
 type TiKVLabelProvider interface {
 	GetTiKVLabels() (map[string]map[string]string, error)
 }