diff --git a/v2/reputation/convert.go b/v2/reputation/convert.go
index 52df2fa1..8aa9aa01 100644
--- a/v2/reputation/convert.go
+++ b/v2/reputation/convert.go
@@ -458,6 +458,7 @@ func (x *SendIntermediateResultRequestBody) ToGRPCMessage() grpc.Message {
 	if x != nil {
 		m = new(reputation.SendIntermediateResultRequest_Body)
 
+		m.SetEpoch(x.epoch)
 		m.SetIteration(x.iter)
 		m.SetTrust(x.trust.ToGRPCMessage().(*reputation.PeerToPeerTrust))
 	}
@@ -480,6 +481,7 @@ func (x *SendIntermediateResultRequestBody) FromGRPCMessage(m grpc.Message) erro
 		return err
 	}
 
+	x.epoch = v.GetEpoch()
 	x.iter = v.GetIteration()
 
 	return nil
diff --git a/v2/reputation/marshal.go b/v2/reputation/marshal.go
index 20fa6776..2f084088 100644
--- a/v2/reputation/marshal.go
+++ b/v2/reputation/marshal.go
@@ -277,6 +277,7 @@ func (x *SendLocalTrustResponseBody) Unmarshal(data []byte) error {
 
 const (
 	_ = iota
+	sendInterResBodyEpochFNum
 	sendInterResBodyIterFNum
 	sendInterResBodyTrustFNum
 )
@@ -290,11 +291,25 @@ func (x *SendIntermediateResultRequestBody) StableMarshal(buf []byte) ([]byte, e
 		buf = make([]byte, x.StableSize())
 	}
 
-	offset, err := protoutil.UInt32Marshal(sendInterResBodyIterFNum, buf, x.iter)
+	var (
+		offset, n int
+		err       error
+	)
+
+	n, err = protoutil.UInt64Marshal(sendInterResBodyEpochFNum, buf, x.epoch)
 	if err != nil {
 		return nil, err
 	}
 
+	offset += n
+
+	n, err = protoutil.UInt32Marshal(sendInterResBodyIterFNum, buf[offset:], x.iter)
+	if err != nil {
+		return nil, err
+	}
+
+	offset += n
+
 	_, err = protoutil.NestedStructureMarshal(sendInterResBodyTrustFNum, buf[offset:], x.trust)
 	if err != nil {
 		return nil, err
@@ -304,6 +319,7 @@ func (x *SendIntermediateResultRequestBody) StableMarshal(buf []byte) ([]byte, e
 }
 
 func (x *SendIntermediateResultRequestBody) StableSize() (size int) {
+	size += protoutil.UInt64Size(sendInterResBodyEpochFNum, x.epoch)
 	size += protoutil.UInt32Size(sendInterResBodyIterFNum, x.iter)
 	size += protoutil.NestedStructureSize(sendInterResBodyTrustFNum, x.trust)
 
diff --git a/v2/reputation/test/generate.go b/v2/reputation/test/generate.go
index 65e50e86..fbd4bd16 100644
--- a/v2/reputation/test/generate.go
+++ b/v2/reputation/test/generate.go
@@ -109,6 +109,7 @@ func GenerateSendIntermediateResultRequestBody(empty bool) *reputation.SendInter
 	m := new(reputation.SendIntermediateResultRequestBody)
 
 	if !empty {
+		m.SetEpoch(123)
 		m.SetIteration(564)
 	}
 
diff --git a/v2/reputation/types.go b/v2/reputation/types.go
index b7ef5453..b1bd7075 100644
--- a/v2/reputation/types.go
+++ b/v2/reputation/types.go
@@ -297,11 +297,29 @@ func (x *SendLocalTrustResponse) SetBody(v *SendLocalTrustResponseBody) {
 
 // SendIntermediateResultRequestBody is a structure of SendIntermediateResult request body.
 type SendIntermediateResultRequestBody struct {
+	epoch uint64
+
 	iter uint32
 
 	trust *PeerToPeerTrust
 }
 
+// GetEpoch returns epoch number in which the intermediate trust was assessed.
+func (x *SendIntermediateResultRequestBody) GetEpoch() uint64 {
+	if x != nil {
+		return x.epoch
+	}
+
+	return 0
+}
+
+// SetEpoch sets epoch number in which the intermediate trust was assessed.
+func (x *SendIntermediateResultRequestBody) SetEpoch(v uint64) {
+	if x != nil {
+		x.epoch = v
+	}
+}
+
 // GetIteration returns sequence number of the iteration.
 func (x *SendIntermediateResultRequestBody) GetIteration() uint32 {
 	if x != nil {