diff --git a/cmd/common-main.go b/cmd/common-main.go
index a56c5fbf9..5d584ad40 100644
--- a/cmd/common-main.go
+++ b/cmd/common-main.go
@@ -29,7 +29,6 @@ import (
 	"fmt"
 	"math/rand"
 	"net"
-	"net/http"
 	"net/url"
 	"os"
 	"path"
@@ -54,7 +53,6 @@ import (
 	"github.com/minio/kes-go"
 	"github.com/minio/madmin-go/v3"
 	"github.com/minio/minio-go/v7"
-	"github.com/minio/minio-go/v7/pkg/credentials"
 	"github.com/minio/minio-go/v7/pkg/set"
 	"github.com/minio/minio/internal/auth"
 	"github.com/minio/minio/internal/color"
@@ -71,10 +69,7 @@ import (
 // serverDebugLog will enable debug printing
 var serverDebugLog = env.Get("_MINIO_SERVER_DEBUG", config.EnableOff) == config.EnableOn
 
-var (
-	shardDiskTimeDelta     time.Duration
-	defaultAWSCredProvider []credentials.Provider
-)
+var shardDiskTimeDelta time.Duration
 
 func init() {
 	if runtime.GOOS == "windows" {
@@ -112,14 +107,6 @@ func init() {
 	gob.Register(madmin.XFSErrorConfigs{})
 	gob.Register(map[string]interface{}{})
 
-	defaultAWSCredProvider = []credentials.Provider{
-		&credentials.IAM{
-			Client: &http.Client{
-				Transport: NewHTTPTransport(),
-			},
-		},
-	}
-
 	var err error
 	shardDiskTimeDelta, err = time.ParseDuration(env.Get("_MINIO_SHARD_DISKTIME_DELTA", "1m"))
 	if err != nil {
diff --git a/cmd/warm-backend-s3.go b/cmd/warm-backend-s3.go
index 3f51d7473..4a53f402a 100644
--- a/cmd/warm-backend-s3.go
+++ b/cmd/warm-backend-s3.go
@@ -115,7 +115,11 @@ func newWarmBackendS3(conf madmin.TierS3, tier string) (*warmBackendS3, error) {
 	}
 	var creds *credentials.Credentials
 	if conf.AWSRole {
-		creds = credentials.NewChainCredentials(defaultAWSCredProvider)
+		creds = credentials.New(&credentials.IAM{
+			Client: &http.Client{
+				Transport: NewHTTPTransport(),
+			},
+		})
 	} else {
 		creds = credentials.NewStaticV4(conf.AccessKey, conf.SecretKey, "")
 	}
diff --git a/cmd/warm-backend.go b/cmd/warm-backend.go
index 8169ee242..d04c6067f 100644
--- a/cmd/warm-backend.go
+++ b/cmd/warm-backend.go
@@ -117,7 +117,7 @@ type tierPermErr struct {
 }
 
 func (te tierPermErr) Error() string {
-	return fmt.Sprintf("failed to perform %s %v", te.Op, te.Err)
+	return fmt.Sprintf("failed to perform %s: %v", te.Op, te.Err)
 }
 
 func errIsTierPermError(err error) bool {