diff --git a/weed/storage/store_load_balancing_simple_test.go b/weed/storage/store_load_balancing_simple_test.go
index 2036bd23c..22f88ff0f 100644
--- a/weed/storage/store_load_balancing_simple_test.go
+++ b/weed/storage/store_load_balancing_simple_test.go
@@ -3,6 +3,7 @@ package storage
 import (
 	"os"
 	"path/filepath"
+	"strconv"
 	"testing"
 
 	"github.com/seaweedfs/seaweedfs/weed/storage/needle"
@@ -22,7 +23,7 @@ func TestLoadBalancingDistribution(t *testing.T) {
 
 	numDirs := 3
 	for i := 0; i < numDirs; i++ {
-		dir := filepath.Join(tempDir, "dir"+string(rune('0'+i)))
+		dir := filepath.Join(tempDir, "dir"+strconv.Itoa(i))
 		os.MkdirAll(dir, 0755)
 		dirs = append(dirs, dir)
 		maxCounts = append(maxCounts, 100) // high limit
@@ -83,10 +84,3 @@ func TestLoadBalancingDistribution(t *testing.T) {
 		}
 	}
 }
-
-// TestLoadBalancingWithRemoteVolumes tests that remote volumes are ignored in load balancing
-func TestLoadBalancingWithRemoteVolumes(t *testing.T) {
-	// This is a unit test of LocalVolumesLen() which we already test above
-	// The integration test is complex due to file creation, so we'll keep it simple
-	t.Skip("Already tested by TestLocalVolumesLen")
-}
diff --git a/weed/storage/store_load_balancing_test.go b/weed/storage/store_load_balancing_test.go
index a197f0657..4d2c1b61c 100644
--- a/weed/storage/store_load_balancing_test.go
+++ b/weed/storage/store_load_balancing_test.go
@@ -3,6 +3,7 @@ package storage
 import (
 	"os"
 	"path/filepath"
+	"strconv"
 	"testing"
 
 	"github.com/seaweedfs/seaweedfs/weed/pb/volume_server_pb"
@@ -231,7 +232,7 @@ func createTestVolume(vid needle.VolumeId, isRemote bool) *Volume {
 	if isRemote {
 		vol.hasRemoteFile = true
 		vol.volumeInfo.Files = []*volume_server_pb.RemoteFile{
-			{BackendType: "s3", BackendId: "test", Key: "remote-key-" + string(rune(vid))},
+			{BackendType: "s3", BackendId: "test", Key: "remote-key-" + strconv.Itoa(int(vid))},
 		}
 	}