diff --git a/pkg/core/helper_test.go b/pkg/core/helper_test.go
index ff73ba750..05f67e7e9 100644
--- a/pkg/core/helper_test.go
+++ b/pkg/core/helper_test.go
@@ -178,6 +178,12 @@ func TestCreateBasicChain(t *testing.T) {
 	txMoveNeo.ValidUntilBlock = validUntilBlock
 	txMoveNeo.Nonce = getNextNonce()
 	txMoveNeo.Sender = neoOwner
+	txMoveNeo.Cosigners = []transaction.Cosigner{{
+		Account:          neoOwner,
+		Scopes:           transaction.CalledByEntry,
+		AllowedContracts: nil,
+		AllowedGroups:    nil,
+	}}
 
 	// use output of issue tx from genesis block as an input
 	genesisBlock, err := bc.GetBlock(bc.GetHeaderHash(0))
@@ -362,6 +368,14 @@ func TestCreateBasicChain(t *testing.T) {
 	transferTx.Nonce = getNextNonce()
 	transferTx.ValidUntilBlock = validUntilBlock
 	transferTx.Sender = priv0ScriptHash
+	transferTx.Cosigners = []transaction.Cosigner{
+		{
+			Account:          priv0ScriptHash,
+			Scopes:           transaction.CalledByEntry,
+			AllowedContracts: nil,
+			AllowedGroups:    nil,
+		},
+	}
 	require.NoError(t, addNetworkFee(bc, transferTx, acc0))
 	require.NoError(t, acc0.SignTx(transferTx))
 
@@ -373,6 +387,14 @@ func TestCreateBasicChain(t *testing.T) {
 	transferTx.Nonce = getNextNonce()
 	transferTx.ValidUntilBlock = validUntilBlock
 	transferTx.Sender = priv0ScriptHash
+	transferTx.Cosigners = []transaction.Cosigner{
+		{
+			Account:          priv0ScriptHash,
+			Scopes:           transaction.CalledByEntry,
+			AllowedContracts: nil,
+			AllowedGroups:    nil,
+		},
+	}
 	require.NoError(t, addNetworkFee(bc, transferTx, acc0))
 	require.NoError(t, acc0.SignTx(transferTx))
 
diff --git a/pkg/core/native/native_nep5.go b/pkg/core/native/native_nep5.go
index 190579616..7ea25e20f 100644
--- a/pkg/core/native/native_nep5.go
+++ b/pkg/core/native/native_nep5.go
@@ -5,6 +5,7 @@ import (
 	"math/big"
 
 	"github.com/nspcc-dev/neo-go/pkg/core/interop"
+	"github.com/nspcc-dev/neo-go/pkg/core/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/core/state"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
@@ -147,6 +148,17 @@ func (c *nep5TokenNative) transfer(ic *interop.Context, from, to util.Uint160, a
 		return errors.New("negative amount")
 	}
 
+	ok, err := runtime.CheckHashedWitness(ic, nep5ScriptHash{
+		callingScriptHash: c.Hash,
+		entryScriptHash:   c.Hash,
+		currentScriptHash: c.Hash,
+	}, from)
+	if err != nil {
+		return err
+	} else if !ok {
+		return errors.New("invalid signature")
+	}
+
 	keyFrom := makeAccountKey(from)
 	siFrom := ic.DAO.GetStorageItem(c.Hash, keyFrom)
 	if siFrom == nil {
diff --git a/pkg/rpc/client/nep5.go b/pkg/rpc/client/nep5.go
index 1b5eb1b95..06302e8eb 100644
--- a/pkg/rpc/client/nep5.go
+++ b/pkg/rpc/client/nep5.go
@@ -111,6 +111,14 @@ func (c *Client) TransferNEP5(acc *wallet.Account, to util.Uint160, token *walle
 	script := w.Bytes()
 	tx := transaction.NewInvocationTX(script, gas)
 	tx.Sender = from
+	tx.Cosigners = []transaction.Cosigner{
+		{
+			Account:          from,
+			Scopes:           transaction.CalledByEntry,
+			AllowedContracts: nil,
+			AllowedGroups:    nil,
+		},
+	}
 
 	result, err := c.InvokeScript(hex.EncodeToString(script))
 	if err != nil {
diff --git a/pkg/rpc/server/server_test.go b/pkg/rpc/server/server_test.go
index db7cd3679..1d28ab001 100644
--- a/pkg/rpc/server/server_test.go
+++ b/pkg/rpc/server/server_test.go
@@ -580,7 +580,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 	"gettransactionheight": {
 		{
 			name:   "positive",
-			params: `["792dfa667e204c41fe68437df9324b04b14bcc94bbf7c6108ef0067a196c7600"]`,
+			params: `["0e873d5d565a03c6cd39efa3b446e1901b4636c448a22bc7e8c259c5a28a2eda"]`,
 			result: func(e *executor) interface{} {
 				h := 1
 				return &h
@@ -792,7 +792,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 	"sendrawtransaction": {
 		{
 			name:   "positive",
-			params: `["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"]`,
+			params: `["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"]`,
 			result: func(e *executor) interface{} {
 				v := true
 				return &v
diff --git a/pkg/rpc/server/testdata/testblocks.acc b/pkg/rpc/server/testdata/testblocks.acc
index 9459598e4..bae75785b 100644
Binary files a/pkg/rpc/server/testdata/testblocks.acc and b/pkg/rpc/server/testdata/testblocks.acc differ