diff --git a/commonfile/fileproto/file.pb.go b/commonfile/fileproto/file.pb.go
index 52b1b6e0..9aa8aeeb 100644
--- a/commonfile/fileproto/file.pb.go
+++ b/commonfile/fileproto/file.pb.go
@@ -620,7 +620,7 @@ var xxx_messageInfo_BlocksBindResponse proto.InternalMessageInfo
 
 type FilesDeleteRequest struct {
 	SpaceId string   `protobuf:"bytes,1,opt,name=spaceId,proto3" json:"spaceId,omitempty"`
-	FileIds [][]byte `protobuf:"bytes,2,rep,name=fileIds,proto3" json:"fileIds,omitempty"`
+	FileIds []string `protobuf:"bytes,2,rep,name=fileIds,proto3" json:"fileIds,omitempty"`
 }
 
 func (m *FilesDeleteRequest) Reset()         { *m = FilesDeleteRequest{} }
@@ -663,7 +663,7 @@ func (m *FilesDeleteRequest) GetSpaceId() string {
 	return ""
 }
 
-func (m *FilesDeleteRequest) GetFileIds() [][]byte {
+func (m *FilesDeleteRequest) GetFileIds() []string {
 	if m != nil {
 		return m.FileIds
 	}
@@ -1031,53 +1031,53 @@ func init() {
 }
 
 var fileDescriptor_fd665a7e11c833d5 = []byte{
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+	// 731 bytes of a gzipped FileDescriptorProto
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+	0x00, 0xff, 0xff, 0x21, 0xe9, 0xf4, 0xee, 0x22, 0x08, 0x00, 0x00,
 }
 
 func (m *BlockGetRequest) Marshal() (dAtA []byte, err error) {
@@ -1946,8 +1946,8 @@ func (m *FilesDeleteRequest) Size() (n int) {
 		n += 1 + l + sovFile(uint64(l))
 	}
 	if len(m.FileIds) > 0 {
-		for _, b := range m.FileIds {
-			l = len(b)
+		for _, s := range m.FileIds {
+			l = len(s)
 			n += 1 + l + sovFile(uint64(l))
 		}
 	}
@@ -3256,7 +3256,7 @@ func (m *FilesDeleteRequest) Unmarshal(dAtA []byte) error {
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field FileIds", wireType)
 			}
-			var byteLen int
+			var stringLen uint64
 			for shift := uint(0); ; shift += 7 {
 				if shift >= 64 {
 					return ErrIntOverflowFile
@@ -3266,23 +3266,23 @@ func (m *FilesDeleteRequest) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				byteLen |= int(b&0x7F) << shift
+				stringLen |= uint64(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
 			}
-			if byteLen < 0 {
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
 				return ErrInvalidLengthFile
 			}
-			postIndex := iNdEx + byteLen
+			postIndex := iNdEx + intStringLen
 			if postIndex < 0 {
 				return ErrInvalidLengthFile
 			}
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.FileIds = append(m.FileIds, make([]byte, postIndex-iNdEx))
-			copy(m.FileIds[len(m.FileIds)-1], dAtA[iNdEx:postIndex])
+			m.FileIds = append(m.FileIds, string(dAtA[iNdEx:postIndex]))
 			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
diff --git a/commonfile/fileproto/protos/file.proto b/commonfile/fileproto/protos/file.proto
index 3bb7c05e..853cdd50 100644
--- a/commonfile/fileproto/protos/file.proto
+++ b/commonfile/fileproto/protos/file.proto
@@ -86,7 +86,7 @@ message BlocksBindResponse {}
 
 message FilesDeleteRequest {
     string spaceId = 1;
-    repeated bytes fileIds = 2;
+    repeated string fileIds = 2;
 }
 
 message FilesDeleteResponse {}