diff --git a/pkg/compiler/syscall.go b/pkg/compiler/syscall.go
index be1b8a9c9..9b725a1c4 100644
--- a/pkg/compiler/syscall.go
+++ b/pkg/compiler/syscall.go
@@ -1,6 +1,10 @@
 package compiler
 
 var syscalls = map[string]map[string]string{
+	"binary": {
+		"Serialize":   "System.Binary.Serialize",
+		"Deserialize": "System.Binary.Deserialize",
+	},
 	"crypto": {
 		"ECDsaVerify": "Neo.Crypto.ECDsaVerify",
 	},
@@ -37,8 +41,6 @@ var syscalls = map[string]map[string]string{
 		"Notify":       "System.Runtime.Notify",
 		"Log":          "System.Runtime.Log",
 		"GetTime":      "System.Runtime.GetTime",
-		"Serialize":    "System.Binary.Serialize",
-		"Deserialize":  "System.Binary.Deserialize",
 	},
 	"blockchain": {
 		"GetBlock":                "System.Blockchain.GetBlock",