diff --git a/pkg/compiler/syscall.go b/pkg/compiler/syscall.go
index b8f597736..5f46ca9af 100644
--- a/pkg/compiler/syscall.go
+++ b/pkg/compiler/syscall.go
@@ -30,8 +30,8 @@ var syscalls = map[string]map[string]string{
 	},
 	"blockchain": {
 		"GetBlock":                "System.Blockchain.GetBlock",
-		"GetContract":             "Neo.Blockchain.GetContract",
-		"GetHeight":               "Neo.Blockchain.GetHeight",
+		"GetContract":             "System.Blockchain.GetContract",
+		"GetHeight":               "System.Blockchain.GetHeight",
 		"GetTransaction":          "System.Blockchain.GetTransaction",
 		"GetTransactionFromBlock": "System.Blockchain.GetTransactionFromBlock",
 		"GetTransactionHeight":    "System.Blockchain.GetTransactionHeight",
diff --git a/pkg/core/interops.go b/pkg/core/interops.go
index be271a10e..b20758e0c 100644
--- a/pkg/core/interops.go
+++ b/pkg/core/interops.go
@@ -94,8 +94,6 @@ var systemInterops = []interop.Function{
 }
 
 var neoInterops = []interop.Function{
-	{Name: "Neo.Blockchain.GetContract", Func: bcGetContract, Price: 100},
-	{Name: "Neo.Blockchain.GetHeight", Func: bcGetHeight, Price: 1},
 	{Name: "Neo.Contract.Create", Func: contractCreate, Price: 0},
 	{Name: "Neo.Contract.Destroy", Func: contractDestroy, Price: 1},
 	{Name: "Neo.Contract.GetScript", Func: contractGetScript, Price: 1},