diff --git a/goextVersion.go b/goextVersion.go
index 7d6ec88..656ab82 100644
--- a/goextVersion.go
+++ b/goextVersion.go
@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.470"
+const GoextVersion = "0.0.471"
 
-const GoextVersionTimestamp = "2024-06-11T19:34:48+0200"
+const GoextVersionTimestamp = "2024-06-11T19:39:43+0200"
diff --git a/gojson/encode.go b/gojson/encode.go
index 903c03b..aca278f 100644
--- a/gojson/encode.go
+++ b/gojson/encode.go
@@ -769,13 +769,6 @@ type structFields struct {
 }
 
 func (se structEncoder) encode(e *encodeState, v reflect.Value, opts encOpts) {
-
-	if v.CanAddr() && v.Addr().Type().Implements(goextJsonMarshallerType) {
-		if gejm, ok := v.Addr().Interface().(GoextJsonMarshaller); ok {
-			gejm.PreGoJsonMarshal()
-		}
-	}
-
 	next := byte('{')
 FieldLoop:
 	for i := range se.fields.list {
diff --git a/gojson/interfaces.go b/gojson/interfaces.go
deleted file mode 100644
index 5f0fe02..0000000
--- a/gojson/interfaces.go
+++ /dev/null
@@ -1,13 +0,0 @@
-package json
-
-import (
-	"reflect"
-)
-
-type GoextJsonMarshaller interface {
-	PreGoJsonMarshal()
-}
-
-var (
-	goextJsonMarshallerType = reflect.TypeOf((*GoextJsonMarshaller)(nil)).Elem()
-)
diff --git a/gojson/interfaces_test.go b/gojson/interfaces_test.go
deleted file mode 100644
index 502afbe..0000000
--- a/gojson/interfaces_test.go
+++ /dev/null
@@ -1,37 +0,0 @@
-package json
-
-import (
-	"fmt"
-	"testing"
-)
-
-type testStruct1 struct {
-	TS2 *testStruct2 `json:"ts2"`
-}
-
-type testStruct2 struct {
-	A string `json:"a"`
-}
-
-func (t *testStruct2) PreGoJsonMarshal() {
-	t.A = "Hello"
-}
-
-func TestGoextJsonMarshaller(t *testing.T) {
-	t1 := testStruct1{TS2: &testStruct2{}}
-
-	v, err := Marshal(t1)
-	if err != nil {
-		t.Fatal()
-	}
-
-	fmt.Printf("%s\n", v)
-
-	if string(v) != `{"ts2":{"a":"Hello"}}` {
-		t.Fatalf("PreGoJsonMarshal failed")
-	}
-
-	if t1.TS2.A != "Hello" {
-		t.Fatalf("PreGoJsonMarshal failed")
-	}
-}