diff --git a/networking/failback.go b/networking/failback.go
index 9b7b72c..842858c 100644
--- a/networking/failback.go
+++ b/networking/failback.go
@@ -63,7 +63,7 @@ func (d *RoundrobinDialer) resolveHost(ctx context.Context, network, connectAddr
 	}
 
 	if resolvedIPs, err = d.Dialer.Resolver.LookupIP(ctx, network, host); err != nil {
-		log.Printf("cannot resolve host %s : %s", err)
+		log.Printf("cannot resolve host %s(%s) : %s", host, network, err)
 		return
 	}
 
diff --git a/types/json.go b/types/json.go
index d6ec088..8de5812 100644
--- a/types/json.go
+++ b/types/json.go
@@ -20,7 +20,7 @@ func (j JSON) String() string {
 
 // Unmarshal your JSON variable into dest.
 func (j JSON) Unmarshal(dest any) error {
-	iter := misc.JSONCodec.BorrowIterator(nil)
+	iter := misc.JSONCodec.BorrowIterator(j)
 	defer misc.JSONCodec.ReturnIterator(iter)
 	iter.ReadVal(dest)
 	return iter.Error
diff --git a/types/json_test.go b/types/json_test.go
index 9ba2327..37be825 100644
--- a/types/json_test.go
+++ b/types/json_test.go
@@ -18,12 +18,12 @@ func TestJSONUnmarshal(t *testing.T) {
 	t.Parallel()
 
 	type JSONTest struct {
-		Name string
-		Age  int
+		Name string `json:"name"`
+		Age  int    `json:"age"`
 	}
 	var jt JSONTest
 
-	j := JSON(`{"Name":"hi","Age":15}`)
+	j := JSON(`{"name":"hi","age":15}`)
 	err := j.Unmarshal(&jt)
 	if err != nil {
 		t.Error(err)
@@ -41,8 +41,8 @@ func TestJSONMarshal(t *testing.T) {
 	t.Parallel()
 
 	type JSONTest struct {
-		Name string
-		Age  int
+		Name string `json:"name"`
+		Age  int    `json:"age"`
 	}
 	jt := JSONTest{
 		Name: "hi",
@@ -55,8 +55,8 @@ func TestJSONMarshal(t *testing.T) {
 		t.Error(err)
 	}
 
-	if j.String() != `{"Name":"hi","Age":15}` {
-		t.Errorf("expected %s, got %s", `{"Name":"hi","Age":15}`, j.String())
+	if j.String() != `{"name":"hi","age":15}` {
+		t.Errorf("expected %s, got %s", `{"name":"hi","age":15}`, j.String())
 	}
 }
 
@@ -92,7 +92,7 @@ func TestJSONMarshalJSON(t *testing.T) {
 func TestJSONValue(t *testing.T) {
 	t.Parallel()
 
-	j := JSON(`{"Name":"hi","Age":15}`)
+	j := JSON(`{"name":"hi","age":15}`)
 	v, err := j.Value()
 	if err != nil {
 		t.Error(err)