diff --git a/internal/fakechain/fakechain.go b/internal/fakechain/fakechain.go
index f90ce2bde..9fed4b11b 100644
--- a/internal/fakechain/fakechain.go
+++ b/internal/fakechain/fakechain.go
@@ -80,6 +80,11 @@ func (chain *FakeChain) IsTxStillRelevant(t *transaction.Transaction, txpool *me
 	panic("TODO")
 }
 
+// InitVerificationVM initializes VM for witness check.
+func (chain *FakeChain) InitVerificationVM(v *vm.VM, getContract func(util.Uint160) (*state.Contract, error), hash util.Uint160, witness *transaction.Witness) error {
+	panic("TODO")
+}
+
 // IsExtensibleAllowed implements Blockchainer interface.
 func (*FakeChain) IsExtensibleAllowed(uint160 util.Uint160) bool {
 	return true
diff --git a/pkg/core/blockchain.go b/pkg/core/blockchain.go
index 5af463146..6849e799a 100644
--- a/pkg/core/blockchain.go
+++ b/pkg/core/blockchain.go
@@ -1655,9 +1655,8 @@ var (
 	ErrInvalidVerificationContract = errors.New("verification contract is missing `verify` method")
 )
 
-// initVerificationVM initializes VM for witness check.
-func (bc *Blockchain) initVerificationVM(ic *interop.Context, hash util.Uint160, witness *transaction.Witness) error {
-	v := ic.VM
+// InitVerificationVM initializes VM for witness check.
+func (bc *Blockchain) InitVerificationVM(v *vm.VM, getContract func(util.Uint160) (*state.Contract, error), hash util.Uint160, witness *transaction.Witness) error {
 	if len(witness.VerificationScript) != 0 {
 		if witness.ScriptHash() != hash {
 			return ErrWitnessHashMismatch
@@ -1671,7 +1670,7 @@ func (bc *Blockchain) initVerificationVM(ic *interop.Context, hash util.Uint160,
 		}
 		v.LoadScriptWithFlags(witness.VerificationScript, callflag.ReadOnly)
 	} else {
-		cs, err := ic.GetContract(hash)
+		cs, err := getContract(hash)
 		if err != nil {
 			return ErrUnknownVerificationContract
 		}
@@ -1717,7 +1716,7 @@ func (bc *Blockchain) verifyHashAgainstScript(hash util.Uint160, witness *transa
 	vm.SetPriceGetter(interopCtx.GetPrice)
 	vm.LoadToken = contract.LoadToken(interopCtx)
 	vm.GasLimit = gas
-	if err := bc.initVerificationVM(interopCtx, hash, witness); err != nil {
+	if err := bc.InitVerificationVM(vm, interopCtx.GetContract, hash, witness); err != nil {
 		return 0, err
 	}
 	err := vm.Run()
diff --git a/pkg/core/blockchainer/blockchainer.go b/pkg/core/blockchainer/blockchainer.go
index bdfdc06d8..c9936e9d0 100644
--- a/pkg/core/blockchainer/blockchainer.go
+++ b/pkg/core/blockchainer/blockchainer.go
@@ -25,6 +25,7 @@ type Blockchainer interface {
 	AddBlock(*block.Block) error
 	CalculateClaimable(h util.Uint160, endHeight uint32) (*big.Int, error)
 	Close()
+	InitVerificationVM(v *vm.VM, getContract func(util.Uint160) (*state.Contract, error), hash util.Uint160, witness *transaction.Witness) error
 	IsTxStillRelevant(t *transaction.Transaction, txpool *mempool.Pool, isPartialTx bool) bool
 	HeaderHeight() uint32
 	GetBlock(hash util.Uint256) (*block.Block, error)