diff --git a/errors/gerror/gerror_error_json.go b/errors/gerror/gerror_error_json.go
index 5c290d7af..ae245cdd7 100644
--- a/errors/gerror/gerror_error_json.go
+++ b/errors/gerror/gerror_error_json.go
@@ -6,8 +6,12 @@
 
 package gerror
 
+import (
+	"encoding/json"
+)
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 // Note that do not use pointer as its receiver here.
 func (err Error) MarshalJSON() ([]byte, error) {
-	return []byte(`"` + err.Error() + `"`), nil
+	return json.Marshal(err.Error())
 }
diff --git a/errors/gerror/gerror_z_unit_test.go b/errors/gerror/gerror_z_unit_test.go
index 83acc1837..1e463d1ba 100644
--- a/errors/gerror/gerror_z_unit_test.go
+++ b/errors/gerror/gerror_z_unit_test.go
@@ -395,6 +395,19 @@ func Test_Json(t *testing.T) {
 		t.Assert(e, nil)
 		t.Assert(string(b), `"2: 1"`)
 	})
+	gtest.C(t, func(t *gtest.T) {
+		errNormal := gerror.New("test")
+		b, e := json.Marshal(errNormal)
+		t.Assert(e, nil)
+		t.Assert(string(b), `"test"`)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		// The string contains special characters.
+		errWithSign := gerror.New(`test ""`)
+		b, e := json.Marshal(errWithSign)
+		t.Assert(e, nil)
+		t.Assert(string(b), `"test \"\""`)
+	})
 }
 
 func Test_HasStack(t *testing.T) {