diff --git a/core/vm/opcodes.go b/core/vm/opcodes.go
index 49403faf3d..7fe55b72f6 100644
--- a/core/vm/opcodes.go
+++ b/core/vm/opcodes.go
@@ -237,6 +237,9 @@ var opCodeToString = map[OpCode]string{
 	OR:     "OR",
 	XOR:    "XOR",
 	BYTE:   "BYTE",
+	SHL:    "SHL",
+	SHR:    "SHR",
+	SAR:    "SAR",
 	ADDMOD: "ADDMOD",
 	MULMOD: "MULMOD",
 
@@ -403,6 +406,9 @@ var stringToOp = map[string]OpCode{
 	"OR":             OR,
 	"XOR":            XOR,
 	"BYTE":           BYTE,
+	"SHL":            SHL,
+	"SHR":            SHR,
+	"SAR":            SAR,
 	"ADDMOD":         ADDMOD,
 	"MULMOD":         MULMOD,
 	"SHA3":           SHA3,