diff --git a/pkg/core/interop_neo.go b/pkg/core/interop_neo.go
index 0dc9a1a75..e1211cdfb 100644
--- a/pkg/core/interop_neo.go
+++ b/pkg/core/interop_neo.go
@@ -736,3 +736,13 @@ func (ic *interopContext) assetRenew(v *vm.VM) error {
 	v.Estack().PushVal(expiration)
 	return nil
 }
+
+// runtimeSerialize serializes top stack item into a ByteArray.
+func (ic *interopContext) runtimeSerialize(v *vm.VM) error {
+	return vm.RuntimeSerialize(v)
+}
+
+// runtimeDeserialize deserializes ByteArray from a stack into an item.
+func (ic *interopContext) runtimeDeserialize(v *vm.VM) error {
+	return vm.RuntimeDeserialize(v)
+}
diff --git a/pkg/core/interops.go b/pkg/core/interops.go
index 9f7782a86..1df944eda 100644
--- a/pkg/core/interops.go
+++ b/pkg/core/interops.go
@@ -64,8 +64,8 @@ func (ic *interopContext) getSystemInteropMap() map[string]vm.InteropFuncPrice {
 		"System.Storage.PutEx":                          {Func: ic.storagePutEx, Price: 0},
 		"System.StorageContext.AsReadOnly":              {Func: ic.storageContextAsReadOnly, Price: 1},
 		"System.Transaction.GetHash":                    {Func: ic.txGetHash, Price: 1},
-		//		"System.Runtime.Deserialize":                    {Func: ic.runtimeDeserialize, Price: 1},
-		//		"System.Runtime.Serialize":                      {Func: ic.runtimeSerialize, Price: 1},
+		"System.Runtime.Deserialize":                    {Func: ic.runtimeDeserialize, Price: 1},
+		"System.Runtime.Serialize":                      {Func: ic.runtimeSerialize, Price: 1},
 	}
 }
 
@@ -148,8 +148,8 @@ func (ic *interopContext) getNeoInteropMap() map[string]vm.InteropFuncPrice {
 		//		"Neo.Iterator.Key": {Func: ic.iteratorKey, Price: 1},
 		//		"Neo.Iterator.Keys": {Func: ic.iteratorKeys, Price: 1},
 		//		"Neo.Iterator.Values": {Func: ic.iteratorValues, Price: 1},
-		//		"Neo.Runtime.Deserialize":  {Func: ic.runtimeDeserialize, Price: 1},
-		//		"Neo.Runtime.Serialize":    {Func: ic.runtimeSerialize, Price: 1},
+		"Neo.Runtime.Deserialize": {Func: ic.runtimeDeserialize, Price: 1},
+		"Neo.Runtime.Serialize":   {Func: ic.runtimeSerialize, Price: 1},
 		//		"Neo.Storage.Find":                {Func: ic.storageFind, Price: 1},
 		//		"Neo.Witness.GetVerificationScript": {Func: ic.witnessGetVerificationScript, Price: 100},
 
diff --git a/pkg/vm/interop.go b/pkg/vm/interop.go
index 8e83e0f11..c96477f6f 100644
--- a/pkg/vm/interop.go
+++ b/pkg/vm/interop.go
@@ -22,8 +22,8 @@ func runtimeNotify(vm *VM) error {
 	return nil
 }
 
-// runtimeSerialize handles syscalls System.Runtime.Serialize and Neo.Runtime.Serialize.
-func runtimeSerialize(vm *VM) error {
+// RuntimeSerialize handles syscalls System.Runtime.Serialize and Neo.Runtime.Serialize.
+func RuntimeSerialize(vm *VM) error {
 	item := vm.Estack().Pop()
 	data, err := serializeItem(item.value)
 	if err != nil {
@@ -37,8 +37,8 @@ func runtimeSerialize(vm *VM) error {
 	return nil
 }
 
-// runtimeDeserialize handles syscalls System.Runtime.Deserialize and Neo.Runtime.Deserialize.
-func runtimeDeserialize(vm *VM) error {
+// RuntimeDeserialize handles syscalls System.Runtime.Deserialize and Neo.Runtime.Deserialize.
+func RuntimeDeserialize(vm *VM) error {
 	data := vm.Estack().Pop().Bytes()
 
 	item, err := deserializeItem(data)
diff --git a/pkg/vm/vm.go b/pkg/vm/vm.go
index 0fb917883..0043afa11 100644
--- a/pkg/vm/vm.go
+++ b/pkg/vm/vm.go
@@ -86,10 +86,10 @@ func New() *VM {
 	// Register native interop hooks.
 	vm.RegisterInteropFunc("Neo.Runtime.Log", runtimeLog, 1)
 	vm.RegisterInteropFunc("Neo.Runtime.Notify", runtimeNotify, 1)
-	vm.RegisterInteropFunc("Neo.Runtime.Serialize", runtimeSerialize, 1)
-	vm.RegisterInteropFunc("System.Runtime.Serialize", runtimeSerialize, 1)
-	vm.RegisterInteropFunc("Neo.Runtime.Deserialize", runtimeDeserialize, 1)
-	vm.RegisterInteropFunc("System.Runtime.Deserialize", runtimeDeserialize, 1)
+	vm.RegisterInteropFunc("Neo.Runtime.Serialize", RuntimeSerialize, 1)
+	vm.RegisterInteropFunc("System.Runtime.Serialize", RuntimeSerialize, 1)
+	vm.RegisterInteropFunc("Neo.Runtime.Deserialize", RuntimeDeserialize, 1)
+	vm.RegisterInteropFunc("System.Runtime.Deserialize", RuntimeDeserialize, 1)
 
 	return vm
 }