diff --git a/v2/netmap/convert.go b/v2/netmap/convert.go
index caf7e33..e08d17c 100644
--- a/v2/netmap/convert.go
+++ b/v2/netmap/convert.go
@@ -54,6 +54,7 @@ func SelectorToGRPCMessage(s *Selector) *netmap.Selector {
 
 	m.SetName(s.GetName())
 	m.SetCount(s.GetCount())
+	m.SetClause(ClauseToGRPCMessage(s.GetClause()))
 	m.SetFilter(s.GetFilter())
 	m.SetAttribute(s.GetAttribute())
 
@@ -69,6 +70,7 @@ func SelectorFromGRPCMessage(m *netmap.Selector) *Selector {
 
 	s.SetName(m.GetName())
 	s.SetCount(m.GetCount())
+	s.SetClause(ClauseFromGRPCMessage(m.GetClause()))
 	s.SetFilter(m.GetFilter())
 	s.SetAttribute(m.GetAttribute())
 
@@ -160,6 +162,14 @@ func PlacementPolicyFromGRPCMessage(m *netmap.PlacementPolicy) *PlacementPolicy
 	return p
 }
 
+func ClauseToGRPCMessage(n Clause) netmap.Clause {
+	return netmap.Clause(n)
+}
+
+func ClauseFromGRPCMessage(n netmap.Clause) Clause {
+	return Clause(n)
+}
+
 func OperationToGRPCMessage(n Operation) netmap.Operation {
 	return netmap.Operation(n)
 }
diff --git a/v2/netmap/grpc/types.go b/v2/netmap/grpc/types.go
index a912cb2..e478d98 100644
--- a/v2/netmap/grpc/types.go
+++ b/v2/netmap/grpc/types.go
@@ -92,6 +92,13 @@ func (m *Selector) SetFilter(v string) {
 	}
 }
 
+// SetClause of placement selector.
+func (m *Selector) SetClause(v Clause) {
+	if m != nil {
+		m.Clause = v
+	}
+}
+
 // SetCount of object replica.
 func (m *Replica) SetCount(v uint32) {
 	if m != nil {
diff --git a/v2/netmap/grpc/types.pb.go b/v2/netmap/grpc/types.pb.go
index 5b0376f..a16be67 100644
Binary files a/v2/netmap/grpc/types.pb.go and b/v2/netmap/grpc/types.pb.go differ
diff --git a/v2/netmap/marshal.go b/v2/netmap/marshal.go
index a38d8a2..2fada3e 100644
--- a/v2/netmap/marshal.go
+++ b/v2/netmap/marshal.go
@@ -13,8 +13,9 @@ const (
 
 	nameSelectorField      = 1
 	countSelectorField     = 2
-	attributeSelectorField = 3
-	filterSelectorField    = 4
+	clauseSelectorField    = 3
+	attributeSelectorField = 4
+	filterSelectorField    = 5
 
 	countReplicaField    = 1
 	selectorReplicaField = 2
@@ -128,6 +129,13 @@ func (s *Selector) StableMarshal(buf []byte) ([]byte, error) {
 
 	offset += n
 
+	n, err = proto.EnumMarshal(clauseSelectorField, buf[offset:], int32(s.clause))
+	if err != nil {
+		return nil, err
+	}
+
+	offset += n
+
 	n, err = proto.StringMarshal(attributeSelectorField, buf[offset:], s.attribute)
 	if err != nil {
 		return nil, err
@@ -146,6 +154,7 @@ func (s *Selector) StableMarshal(buf []byte) ([]byte, error) {
 func (s *Selector) StableSize() (size int) {
 	size += proto.StringSize(nameSelectorField, s.name)
 	size += proto.UInt32Size(countSelectorField, s.count)
+	size += proto.EnumSize(countSelectorField, int32(s.clause))
 	size += proto.StringSize(attributeSelectorField, s.attribute)
 	size += proto.StringSize(filterSelectorField, s.filter)
 
diff --git a/v2/netmap/marshal_test.go b/v2/netmap/marshal_test.go
index 7178a20..5a4ce6c 100644
--- a/v2/netmap/marshal_test.go
+++ b/v2/netmap/marshal_test.go
@@ -151,6 +151,7 @@ func generateSelector(name string) *netmap.Selector {
 	s := new(netmap.Selector)
 	s.SetName(name)
 	s.SetAttribute("attribute")
+	s.SetClause(netmap.Distinct)
 	s.SetCount(10)
 	s.SetFilter("filter")
 
diff --git a/v2/netmap/types.go b/v2/netmap/types.go
index c16fa50..b91d6e5 100644
--- a/v2/netmap/types.go
+++ b/v2/netmap/types.go
@@ -11,6 +11,7 @@ type Filter struct {
 type Selector struct {
 	name      string
 	count     uint32
+	clause    Clause
 	attribute string
 	filter    string
 }
@@ -47,6 +48,9 @@ type NodeInfo struct {
 // NodeState of storage node.
 type NodeState uint32
 
+// Clause of placement selector.
+type Clause uint32
+
 const (
 	UnspecifiedState NodeState = iota
 	Online
@@ -65,6 +69,12 @@ const (
 	AND
 )
 
+const (
+	UnspecifiedClause Clause = iota
+	Same
+	Distinct
+)
+
 func (f *Filter) GetFilters() []*Filter {
 	if f != nil {
 		return f.filters
@@ -162,6 +172,20 @@ func (s *Selector) SetAttribute(attribute string) {
 	}
 }
 
+func (s *Selector) GetClause() Clause {
+	if s != nil {
+		return s.clause
+	}
+
+	return UnspecifiedClause
+}
+
+func (s *Selector) SetClause(clause Clause) {
+	if s != nil {
+		s.clause = clause
+	}
+}
+
 func (s *Selector) GetCount() uint32 {
 	if s != nil {
 		return s.count