diff --git a/common/invoke.go b/common/invoke.go
index 7369193..194405d 100644
--- a/common/invoke.go
+++ b/common/invoke.go
@@ -1,19 +1,9 @@
 package common
 
 import (
-	"github.com/nspcc-dev/neo-go/pkg/interop/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 )
 
-func InvokeID(args []interface{}, prefix []byte) []byte {
-	for i := range args {
-		arg := args[i].([]byte)
-		prefix = append(prefix, arg...)
-	}
-
-	return crypto.SHA256(prefix)
-}
-
 type IRNode struct {
 	PublicKey []byte
 }
diff --git a/common/vote.go b/common/vote.go
index 09d410f..3ae57fa 100644
--- a/common/vote.go
+++ b/common/vote.go
@@ -3,6 +3,7 @@ package common
 import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/binary"
 	"github.com/nspcc-dev/neo-go/pkg/interop/blockchain"
+	"github.com/nspcc-dev/neo-go/pkg/interop/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 	"github.com/nspcc-dev/neo-go/pkg/interop/util"
 )
@@ -107,3 +108,12 @@ func getBallots(ctx storage.Context) []Ballot {
 func BytesEqual(a []byte, b []byte) bool {
 	return util.Equals(string(a), string(b))
 }
+
+func InvokeID(args []interface{}, prefix []byte) []byte {
+	for i := range args {
+		arg := args[i].([]byte)
+		prefix = append(prefix, arg...)
+	}
+
+	return crypto.SHA256(prefix)
+}