diff --git a/decoder/decoder_native_test.go b/decoder/decoder_native_test.go
index 9b435ca92..ebf287ed2 100644
--- a/decoder/decoder_native_test.go
+++ b/decoder/decoder_native_test.go
@@ -33,6 +33,21 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestDecoder_OptionCaseSensitive(t *testing.T) {
+    var js = `{"a":1,"normallllll":1,"longllllllllllllllllllllllllllllllllll":1}`
+    type TS struct{
+        A int 
+        Normallllll int 
+        Longllllllllllllllllllllllllllllllllll int 
+    }
+    var obj = TS{}
+    d := NewDecoder(js)
+    d.SetOptions(OptionCaseSensitive)
+    err := d.Decode(&obj)
+    require.NoError(t, err)
+    require.Equal(t, TS{}, obj)
+}
+
 
 func BenchmarkSkipValidate(b *testing.B) {
     type skiptype struct {
diff --git a/decoder/decoder_test.go b/decoder/decoder_test.go
index 555751a5c..c58ed97a5 100644
--- a/decoder/decoder_test.go
+++ b/decoder/decoder_test.go
@@ -295,21 +295,6 @@ func TestDecoder_MapWithIndirectElement(t *testing.T) {
     assert.Equal(t, [129]byte{1, 2, 3, 4, 5}, v[""].A)
 }
 
-func TestDecoder_OptionCaseSensitive(t *testing.T) {
-    var js = `{"a":1,"normallllll":1,"longllllllllllllllllllllllllllllllllll":1}`
-    type TS struct{
-        A int 
-        Normallllll int 
-        Longllllllllllllllllllllllllllllllllll int 
-    }
-    var obj = TS{}
-    d := NewDecoder(js)
-    d.SetOptions(OptionCaseSensitive)
-    err := d.Decode(&obj)
-    require.NoError(t, err)
-    require.Equal(t, TS{}, obj)
-}
-
 func BenchmarkDecoder_Generic_Sonic(b *testing.B) {
     var w interface{}
     _, _ = decode(TwitterJson, &w, true)