diff --git a/message.go b/message.go
index c3ea791..4146828 100644
--- a/message.go
+++ b/message.go
@@ -102,13 +102,28 @@ func (m *Message) setNameFromArgs(period time.Duration, args ...interface{}) {
 	m.Name = internal.BytesToString(b)
 }
 
+var zdec, _ = zstd.NewReader(nil)
+
+func (m *Message) decompress() ([]byte, error) {
+	switch m.ArgsCompression {
+	case "":
+		return m.ArgsBin, nil
+	case "zstd":
+		return zdec.DecodeAll(m.ArgsBin, nil)
+	case "s2":
+		return s2.Decode(nil, m.ArgsBin)
+	default:
+		return nil, fmt.Errorf("taskq: unsupported compression=%s", m.ArgsCompression)
+	}
+}
+
 func (m *Message) MarshalArgs() ([]byte, error) {
 	if m.ArgsBin != nil {
 		if m.ArgsCompression == "" {
 			return m.ArgsBin, nil
 		}
 		if m.Args == nil {
-			return decompress(nil, m.ArgsBin, m.ArgsCompression)
+			return m.decompress()
 		}
 	}
 
@@ -162,7 +177,7 @@ func (m *Message) UnmarshalBinary(b []byte) error {
 		return err
 	}
 
-	b, err := decompress(nil, m.ArgsBin, m.ArgsCompression)
+	b, err := m.decompress()
 	if err != nil {
 		return err
 	}
@@ -173,21 +188,6 @@ func (m *Message) UnmarshalBinary(b []byte) error {
 	return nil
 }
 
-var zdec, _ = zstd.NewReader(nil)
-
-func decompress(dst, src []byte, compression string) ([]byte, error) {
-	switch compression {
-	case "":
-		return src, nil
-	case "zstd":
-		return zdec.DecodeAll(dst, src)
-	case "s2":
-		return s2.Decode(dst, src)
-	default:
-		return nil, fmt.Errorf("taskq: unsupported compression=%s", compression)
-	}
-}
-
 func appendTimeSlot(b []byte, period time.Duration) []byte {
 	l := len(b)
 	b = append(b, make([]byte, 16)...)