diff --git a/user/util.go b/user/util.go
index e51314f..3022ff9 100644
--- a/user/util.go
+++ b/user/util.go
@@ -1,17 +1,20 @@
 package user
 
 import (
+	"errors"
 	"fmt"
 
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	neofscrypto "github.com/nspcc-dev/neofs-sdk-go/crypto"
 )
 
+var ErrOwnerExtract = errors.New("decode owner failed")
+
 // IDFromKey forms the ID using script hash calculated for the given key.
 func IDFromKey(id *ID, key []byte) error {
 	var pk keys.PublicKey
 	if err := pk.DecodeBytes(key); err != nil {
-		return fmt.Errorf("IDFromKey %v", err)
+		return fmt.Errorf("%w: %v", ErrOwnerExtract, err)
 	}
 
 	id.SetScriptHash(pk.GetScriptHash())
diff --git a/user/util_test.go b/user/util_test.go
index dd2fc22..693ff67 100644
--- a/user/util_test.go
+++ b/user/util_test.go
@@ -20,4 +20,8 @@ func TestIDFromKey(t *testing.T) {
 	require.NoError(t, user.IDFromKey(&id, rawPub))
 
 	require.Equal(t, "NNLi44dJNXtDNSBkofB48aTVYtb1zZrNEs", id.EncodeToString())
+
+	err := user.IDFromKey(&id, []byte{1})
+	require.Error(t, err)
+	require.ErrorIs(t, err, user.ErrOwnerExtract)
 }