diff --git a/README.md b/README.md
index 0bf92aa..2eacbbc 100644
--- a/README.md
+++ b/README.md
@@ -123,26 +123,23 @@ v, err := encoder.Encode(m, encoder.SortMapKeys)
 
 ### Print Syntax Error
 ```go
+import "github.com/bytedance/sonic"
 import "github.com/bytedance/sonic/decoder"
 
 var data interface{}
-dc := decoder.NewDecoder("[[[}]]")
-if err := dc.Decode(&data); err != nil {
+err := sonic.Unmarshal("[[[}]]", &data)
+if err != nil {
+    /*one line by default*/
+    println(e.Error())) // "Syntax error at index 3: invalid char\n\n\t[[[}]]\n\t...^..\n"
+    /*pretty print*/
     if e, ok := err.(decoder.SyntaxError); ok {
-        
         /*Syntax error at index 3: invalid char
 
             [[[}]]
             ...^..
         */
         print(e.Description())
-
-        /*"Syntax error at index 3: invalid char\n\n\t[[[}]]\n\t...^..\n"*/
-        println(fmt.Sprintf("%q", e.Description()))
     }
-
-    /*Decode: Syntax error at index 3: invalid char*/
-    t.Fatalf("Decode: %v", err) 
 }
 ```
 
diff --git a/decoder/errors.go b/decoder/errors.go
index 5276035..c9272a2 100644
--- a/decoder/errors.go
+++ b/decoder/errors.go
@@ -35,7 +35,7 @@ type SyntaxError struct {
 }
 
 func (self SyntaxError) Error() string {
-    return fmt.Sprintf("Syntax error at index %d: %s", self.Pos, self.Code.Message())
+    return fmt.Sprintf("%q", self.Description())
 }
 
 func (self SyntaxError) Description() string {
@@ -45,7 +45,7 @@ func (self SyntaxError) Description() string {
 
     /* check for empty source */
     if self.Src == "" {
-        return self.Error() + " (no sources available)"
+        return fmt.Sprintf("no sources available: %#v", self)
     }
 
     /* prevent slicing before the beginning */
@@ -71,8 +71,9 @@ func (self SyntaxError) Description() string {
 
     /* compose the error description */
     return fmt.Sprintf(
-        "%s\n\n\t%s\n\t%s^%s\n",
-        self.Error(),
+        "Syntax error at index %d: %s\n\n\t%s\n\t%s^%s\n",
+        self.Pos,
+        self.Code.Message(),
         self.Src[p:q],
         strings.Repeat(".", x),
         strings.Repeat(".", y),
diff --git a/decoder/errors_test.go b/decoder/errors_test.go
index 5ab4bed..144ad3c 100644
--- a/decoder/errors_test.go
+++ b/decoder/errors_test.go
@@ -21,6 +21,7 @@ import (
     `testing`
 
     `github.com/bytedance/sonic/internal/native/types`
+    `github.com/stretchr/testify/assert`
 )
 
 func make_err(src string, pos int) SyntaxError {
@@ -48,7 +49,10 @@ func TestErrors_AfterRightEdge(t *testing.T) {
 }
 
 func TestErrors_ShortDescription(t *testing.T) {
-    println(make_err("hello, world", 5).Description())
+    e := make_err("hello, world", 5)
+    println(e.Description())
+    assert.Equal(t, "Syntax error at index 5: invalid char\n\n\thello, world\n\t.....^......\n", e.Description())
+    assert.Equal(t, `"Syntax error at index 5: invalid char\n\n\thello, world\n\t.....^......\n"`, e.Error())
 }
 
 func TestErrors_EmptyDescription(t *testing.T) {
@@ -61,7 +65,7 @@ func TestDecoderErrorStackOverflower(t *testing.T) {
     for i:=0; i<N; i++ {
         var obj map[string]string
         err := NewDecoder(src).Decode(&obj)
-        if err == nil || err.Error() != `Syntax error at index 5: invalid char` {
+        if err == nil {
             t.Fatal(err)
         }
     }