diff --git a/pkg/core/blockchainer.go b/pkg/core/blockchainer.go
index 0531d683d..a65d69847 100644
--- a/pkg/core/blockchainer.go
+++ b/pkg/core/blockchainer.go
@@ -28,7 +28,7 @@ type Blockchainer interface {
 	HasTransaction(util.Uint256) bool
 	GetAssetState(util.Uint256) *AssetState
 	GetAccountState(util.Uint160) *AccountState
-	GetValidators(txes... *transaction.Transaction) ([]*keys.PublicKey, error)
+	GetValidators(txes ...*transaction.Transaction) ([]*keys.PublicKey, error)
 	GetScriptHashesForVerifying(*transaction.Transaction) ([]util.Uint160, error)
 	GetStorageItem(scripthash util.Uint160, key []byte) *StorageItem
 	GetStorageItems(hash util.Uint160) (map[string]*StorageItem, error)
diff --git a/pkg/crypto/keys/publickey_test.go b/pkg/crypto/keys/publickey_test.go
index f85407a23..c7a8f7665 100644
--- a/pkg/crypto/keys/publickey_test.go
+++ b/pkg/crypto/keys/publickey_test.go
@@ -76,7 +76,7 @@ func TestDecodeBytes(t *testing.T) {
 	decodedPubKey := &PublicKey{}
 	err := decodedPubKey.DecodeBytes(pubKey.Bytes())
 	require.NoError(t, err)
-	require.Equal(t, pubKey,decodedPubKey)
+	require.Equal(t, pubKey, decodedPubKey)
 }
 
 func TestSort(t *testing.T) {
diff --git a/pkg/rpc/tx_builder_test.go b/pkg/rpc/tx_builder_test.go
index 0c3e1fa16..2a705ae8e 100644
--- a/pkg/rpc/tx_builder_test.go
+++ b/pkg/rpc/tx_builder_test.go
@@ -67,20 +67,20 @@ func TestInvocationScriptCreationBad(t *testing.T) {
 	contract := util.Uint160{}
 
 	var testParams = []Params{
-		Params{{numberT, "qwerty"}},
-		Params{{arrayT, 42}},
-		Params{{arrayT, []Param{{numberT, 42}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{ByteArray, Param{stringT, "qwerty"}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{Signature, Param{stringT, "qwerty"}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{String, Param{numberT, 42}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{Hash160, Param{stringT, "qwerty"}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{Hash256, Param{stringT, "qwerty"}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{PublicKey, Param{numberT, 42}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{PublicKey, Param{stringT, "qwerty"}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{Integer, Param{stringT, "qwerty"}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{Boolean, Param{numberT, 42}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{Boolean, Param{stringT, "qwerty"}}}}}},
-		Params{{arrayT, []Param{{funcParamT, FuncParam{Unknown, Param{}}}}}},
+		{{numberT, "qwerty"}},
+		{{arrayT, 42}},
+		{{arrayT, []Param{{numberT, 42}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{ByteArray, Param{stringT, "qwerty"}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{Signature, Param{stringT, "qwerty"}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{String, Param{numberT, 42}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{Hash160, Param{stringT, "qwerty"}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{Hash256, Param{stringT, "qwerty"}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{PublicKey, Param{numberT, 42}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{PublicKey, Param{stringT, "qwerty"}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{Integer, Param{stringT, "qwerty"}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{Boolean, Param{numberT, 42}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{Boolean, Param{stringT, "qwerty"}}}}}},
+		{{arrayT, []Param{{funcParamT, FuncParam{Unknown, Param{}}}}}},
 	}
 	for _, ps := range testParams {
 		_, err := CreateFunctionInvocationScript(contract, ps)