diff --git a/pkg/cluster/spec/grafana.go b/pkg/cluster/spec/grafana.go
index ae6b39f817..d4f1824444 100644
--- a/pkg/cluster/spec/grafana.go
+++ b/pkg/cluster/spec/grafana.go
@@ -181,7 +181,7 @@ func (i *GrafanaInstance) InitConfig(
 
 	// transfer config
 	spec := i.InstanceSpec.(*GrafanaSpec)
-	fp = filepath.Join(paths.Cache, fmt.Sprintf("grafana_%s.ini", i.GetHost()))
+	fp = filepath.Join(paths.Cache, fmt.Sprintf("grafana_%s_%d.ini", i.GetHost(), i.GetPort()))
 	if err := config.NewGrafanaConfig(i.GetHost(), paths.Deploy).
 		WithPort(uint64(i.GetPort())).
 		WithUsername(spec.Username).