diff --git a/constant/metadata.go b/constant/metadata.go
index 23cdcd86..eff9a343 100644
--- a/constant/metadata.go
+++ b/constant/metadata.go
@@ -40,6 +40,7 @@ const (
 	ANYTLS
 	MIERU
 	INNER
+	SUDOKU
 )
 
 type AddrType byte
@@ -114,6 +115,8 @@ func (t Type) String() string {
 		return "Mieru"
 	case INNER:
 		return "Inner"
+	case SUDOKU:
+		return "Sudoku"
 	default:
 		return "Unknown"
 	}
@@ -156,6 +159,8 @@ func ParseType(t string) (*Type, error) {
 		res = MIERU
 	case "INNER":
 		res = INNER
+	case "SUDOKU":
+		res = SUDOKU
 	default:
 		return nil, fmt.Errorf("unknown type: %s", t)
 	}
diff --git a/listener/parse.go b/listener/parse.go
index 4e893bf1..35941141 100644
--- a/listener/parse.go
+++ b/listener/parse.go
@@ -134,6 +134,13 @@ func ParseListener(mapping map[string]any) (C.InboundListener, error) {
 			return nil, err
 		}
 		listener, err = IN.NewMieru(mieruOption)
+	case "sudoku":
+		sudokuOption := &IN.SudokuOption{}
+		err = decoder.Decode(mapping, sudokuOption)
+		if err != nil {
+			return nil, err
+		}
+		listener, err = IN.NewSudoku(sudokuOption)
 	default:
 		return nil, fmt.Errorf("unsupport proxy type: %s", proxyType)
 	}