diff --git a/weed/s3api/filer_multipart.go b/weed/s3api/filer_multipart.go
index 0739b2220..eb3daf220 100644
--- a/weed/s3api/filer_multipart.go
+++ b/weed/s3api/filer_multipart.go
@@ -39,7 +39,7 @@ func (s3a *S3ApiServer) createMultipartUpload(ctx context.Context, input *s3.Cre
 	output = &InitiateMultipartUploadResult{
 		CreateMultipartUploadOutput: s3.CreateMultipartUploadOutput{
 			Bucket:   input.Bucket,
-			Key:      input.Key,
+			Key:      objectKey(input.Key),
 			UploadId: aws.String(uploadIdString),
 		},
 	}
@@ -102,7 +102,7 @@ func (s3a *S3ApiServer) completeMultipartUpload(ctx context.Context, input *s3.C
 		CompleteMultipartUploadOutput: s3.CompleteMultipartUploadOutput{
 			Bucket: input.Bucket,
 			ETag:   aws.String("\"" + filer2.ETag(finalParts) + "\""),
-			Key:    input.Key,
+			Key:    objectKey(input.Key),
 		},
 	}
 
@@ -159,7 +159,7 @@ func (s3a *S3ApiServer) listMultipartUploads(ctx context.Context, input *s3.List
 		if entry.Extended != nil {
 			key := entry.Extended["key"]
 			output.Uploads = append(output.Uploads, &s3.MultipartUpload{
-				Key:      aws.String(string(key)),
+				Key:      objectKey(aws.String(string(key))),
 				UploadId: aws.String(entry.Name),
 			})
 		}
@@ -177,7 +177,7 @@ func (s3a *S3ApiServer) listObjectParts(ctx context.Context, input *s3.ListParts
 	output = &ListPartsResult{
 		ListPartsOutput: s3.ListPartsOutput{
 			Bucket:           input.Bucket,
-			Key:              input.Key,
+			Key:              objectKey(input.Key),
 			UploadId:         input.UploadId,
 			MaxParts:         input.MaxParts,         // the maximum number of parts to return.
 			PartNumberMarker: input.PartNumberMarker, // the part number starts after this, exclusive
diff --git a/weed/s3api/filer_util.go b/weed/s3api/filer_util.go
index 4f2c1578b..84e3050cd 100644
--- a/weed/s3api/filer_util.go
+++ b/weed/s3api/filer_util.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"strings"
 	"time"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
@@ -143,3 +144,11 @@ func (s3a *S3ApiServer) exists(ctx context.Context, parentDirectoryPath string,
 
 	return
 }
+
+func objectKey(key *string) *string {
+	if strings.HasPrefix(*key, "/") {
+		t := (*key)[1:]
+		return &t
+	}
+	return key
+}
\ No newline at end of file
diff --git a/weed/s3api/s3api_object_multipart_handlers.go b/weed/s3api/s3api_object_multipart_handlers.go
index 47f83a264..72a25e4a5 100644
--- a/weed/s3api/s3api_object_multipart_handlers.go
+++ b/weed/s3api/s3api_object_multipart_handlers.go
@@ -28,7 +28,7 @@ func (s3a *S3ApiServer) NewMultipartUploadHandler(w http.ResponseWriter, r *http
 
 	response, errCode := s3a.createMultipartUpload(context.Background(), &s3.CreateMultipartUploadInput{
 		Bucket: aws.String(bucket),
-		Key:    aws.String(object),
+		Key:    objectKey(aws.String(object)),
 	})
 
 	if errCode != ErrNone {
@@ -53,7 +53,7 @@ func (s3a *S3ApiServer) CompleteMultipartUploadHandler(w http.ResponseWriter, r
 
 	response, errCode := s3a.completeMultipartUpload(context.Background(), &s3.CompleteMultipartUploadInput{
 		Bucket:   aws.String(bucket),
-		Key:      aws.String(object),
+		Key:      objectKey(aws.String(object)),
 		UploadId: aws.String(uploadID),
 	})
 
@@ -79,7 +79,7 @@ func (s3a *S3ApiServer) AbortMultipartUploadHandler(w http.ResponseWriter, r *ht
 
 	response, errCode := s3a.abortMultipartUpload(context.Background(), &s3.AbortMultipartUploadInput{
 		Bucket:   aws.String(bucket),
-		Key:      aws.String(object),
+		Key:      objectKey(aws.String(object)),
 		UploadId: aws.String(uploadID),
 	})
 
@@ -151,7 +151,7 @@ func (s3a *S3ApiServer) ListObjectPartsHandler(w http.ResponseWriter, r *http.Re
 
 	response, errCode := s3a.listObjectParts(context.Background(), &s3.ListPartsInput{
 		Bucket:           aws.String(bucket),
-		Key:              aws.String(object),
+		Key:              objectKey(aws.String(object)),
 		MaxParts:         aws.Int64(int64(maxParts)),
 		PartNumberMarker: aws.Int64(int64(partNumberMarker)),
 		UploadId:         aws.String(uploadID),
diff --git a/weed/s3api/s3api_objects_list_handlers.go b/weed/s3api/s3api_objects_list_handlers.go
index fd20ebe3c..4053913fb 100644
--- a/weed/s3api/s3api_objects_list_handlers.go
+++ b/weed/s3api/s3api_objects_list_handlers.go
@@ -7,6 +7,7 @@ import (
 	"net/url"
 	"path/filepath"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/chrislusf/seaweedfs/weed/filer2"
@@ -91,6 +92,9 @@ func (s3a *S3ApiServer) listFilerEntries(ctx context.Context, bucket, originalPr
 
 	// convert full path prefix into directory name and prefix for entry name
 	dir, prefix := filepath.Split(originalPrefix)
+	if strings.HasPrefix(dir, "/") {
+		dir = dir[1:]
+	}
 
 	// check filer
 	err = s3a.withFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error {