diff --git a/core/vm/call_stack.go b/core/vm/call_stack.go
index 842ade0176..6ba5b72807 100644
--- a/core/vm/call_stack.go
+++ b/core/vm/call_stack.go
@@ -35,9 +35,9 @@ type callStack struct {
 }
 
 type csCall struct {
-	Op        OpCode
-	Address   common.Address
-	Signature []byte
+	Op       OpCode
+	Address  common.Address
+	Selector []byte
 }
 
 // newCallStack creates a new call stack.
@@ -47,14 +47,14 @@ func newCallStack() *callStack {
 
 // Push pushes given call to the stack.
 func (cs *callStack) Push(op OpCode, addr common.Address, input []byte) {
-	var signature []byte
+	var selector []byte
 	if len(input) >= 4 {
-		signature = input[:4]
+		selector = input[:4]
 	}
 	cs.calls = append(cs.calls, &csCall{
-		Op:        op,
-		Address:   addr,
-		Signature: signature,
+		Op:       op,
+		Address:  addr,
+		Selector: selector,
 	})
 }
 
@@ -121,7 +121,7 @@ func (enc *callStackEncoder) Encode() ([]byte, error) {
 	for _, call := range enc.calls {
 		enc.appendNum(uint256.NewInt(uint64(call.Op)))
 		enc.appendAddr(call.Address)
-		enc.appendNum(uint256.NewInt(0).SetBytes(call.Signature))
+		enc.appendNum(uint256.NewInt(0).SetBytes(call.Selector))
 	}
 
 	return enc.result, nil
diff --git a/core/vm/call_stack_test.go b/core/vm/call_stack_test.go
index 655c20f849..a7f0b90340 100644
--- a/core/vm/call_stack_test.go
+++ b/core/vm/call_stack_test.go
@@ -40,9 +40,9 @@ func benchCallStackPrecompileN(b *testing.B, n int) {
 	var calls []*csCall
 	for i := 0; i < n; i++ {
 		calls = append(calls, &csCall{
-			Op:        OpCode(i),
-			Address:   common.HexToAddress("0xCdA8dcaEe60ce9d63165Ef025fD98CDA2B99B5B2"),
-			Signature: []byte{0xde, 0xad, 0xbe, 0xef},
+			Op:       OpCode(i),
+			Address:  common.HexToAddress("0xCdA8dcaEe60ce9d63165Ef025fD98CDA2B99B5B2"),
+			Selector: []byte{0xde, 0xad, 0xbe, 0xef},
 		})
 	}
 	callStack := newCallStack()
@@ -57,14 +57,14 @@ func TestCallStackPrecompile(t *testing.T) {
 	callStack := newCallStack()
 	callStack.calls = []*csCall{
 		{
-			Op:        OpCode(0x10),
-			Address:   common.HexToAddress("0xCdA8dcaEe60ce9d63165Ef025fD98CDA2B99B5B2"),
-			Signature: []byte{0xab, 0xcd, 0xef, 0x12},
+			Op:       OpCode(0x10),
+			Address:  common.HexToAddress("0xCdA8dcaEe60ce9d63165Ef025fD98CDA2B99B5B2"),
+			Selector: []byte{0xab, 0xcd, 0xef, 0x12},
 		},
 		{
-			Op:        OpCode(0x20),
-			Address:   common.HexToAddress("0xCdA8dcaEe60ce9d63165Ef025fD98CDA2B99B5B2"),
-			Signature: []byte{0xde, 0xad, 0xbe, 0xef},
+			Op:       OpCode(0x20),
+			Address:  common.HexToAddress("0xCdA8dcaEe60ce9d63165Ef025fD98CDA2B99B5B2"),
+			Selector: []byte{0xde, 0xad, 0xbe, 0xef},
 		},
 	}
 	b, err := callStack.Run(nil)