diff --git a/other/java/client/src/main/proto/filer.proto b/other/java/client/src/main/proto/filer.proto
index fa37703b2..a015ba01b 100644
--- a/other/java/client/src/main/proto/filer.proto
+++ b/other/java/client/src/main/proto/filer.proto
@@ -125,6 +125,7 @@ message Entry {
 
     RemoteEntry remote_entry = 10;
     int64 quota = 11; // for bucket only. Positive/Negative means enabled/disabled.
+    string collection = 12; // for bucket only. Empty means using default bucket name.
 }
 
 message FullEntry {
diff --git a/weed/pb/filer.proto b/weed/pb/filer.proto
index fa37703b2..a015ba01b 100644
--- a/weed/pb/filer.proto
+++ b/weed/pb/filer.proto
@@ -125,6 +125,7 @@ message Entry {
 
     RemoteEntry remote_entry = 10;
     int64 quota = 11; // for bucket only. Positive/Negative means enabled/disabled.
+    string collection = 12; // for bucket only. Empty means using default bucket name.
 }
 
 message FullEntry {
diff --git a/weed/pb/filer_pb/filer.pb.go b/weed/pb/filer_pb/filer.pb.go
index 2ba6136e9..74d350b5d 100644
--- a/weed/pb/filer_pb/filer.pb.go
+++ b/weed/pb/filer_pb/filer.pb.go
@@ -341,7 +341,8 @@ type Entry struct {
 	HardLinkCounter int32             `protobuf:"varint,8,opt,name=hard_link_counter,json=hardLinkCounter,proto3" json:"hard_link_counter,omitempty"` // only exists in hard link meta data
 	Content         []byte            `protobuf:"bytes,9,opt,name=content,proto3" json:"content,omitempty"`                                           // if not empty, the file content
 	RemoteEntry     *RemoteEntry      `protobuf:"bytes,10,opt,name=remote_entry,json=remoteEntry,proto3" json:"remote_entry,omitempty"`
-	Quota           int64             `protobuf:"varint,11,opt,name=quota,proto3" json:"quota,omitempty"` // for bucket only. Positive/Negative means enabled/disabled.
+	Quota           int64             `protobuf:"varint,11,opt,name=quota,proto3" json:"quota,omitempty"`          // for bucket only. Positive/Negative means enabled/disabled.
+	Collection      string            `protobuf:"bytes,12,opt,name=collection,proto3" json:"collection,omitempty"` // for bucket only. Empty means using default bucket name.
 }
 
 func (x *Entry) Reset() {
@@ -446,6 +447,13 @@ func (x *Entry) GetQuota() int64 {
 	return 0
 }
 
+func (x *Entry) GetCollection() string {
+	if x != nil {
+		return x.Collection
+	}
+	return ""
+}
+
 type FullEntry struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -4498,7 +4506,7 @@ var file_filer_proto_rawDesc = []byte{
 	0x6d, 0x74, 0x69, 0x6d, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x03, 0x52, 0x0b, 0x72, 0x65, 0x6d,
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@@ -4524,7 +4532,9 @@ var file_filer_proto_rawDesc = []byte{
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