diff --git a/_examples/golang-basics/example.gen.go b/_examples/golang-basics/example.gen.go
index 2b40e57..4412733 100644
--- a/_examples/golang-basics/example.gen.go
+++ b/_examples/golang-basics/example.gen.go
@@ -23,7 +23,7 @@ import (
 
 // Opinionated config for -json=sonic, see https://github.com/bytedance/sonic/blob/main/api.go.
 var jsonCfg = sonic.Config{
-	NoNullSliceOrMap: true, // Encode empty Array or Object as '[]' or '{}' instead of 'null'.
+	// NoNullSliceOrMap: true, // Encode empty Array or Object as '[]' or '{}' instead of 'null'.
 	CompactMarshaler: true,
 	CopyString:       true,
 	ValidateString:   true,
diff --git a/imports.go.tmpl b/imports.go.tmpl
index 52d640f..891d9fc 100644
--- a/imports.go.tmpl
+++ b/imports.go.tmpl
@@ -116,10 +116,10 @@ var jsonCfg = jsoniter.Config{
 
 // Opinionated config for -json=sonic, see https://github.com/bytedance/sonic/blob/main/api.go.
 var jsonCfg = sonic.Config{
-	NoNullSliceOrMap: true, // Encode empty Array or Object as '[]' or '{}' instead of 'null'.
+	// NoNullSliceOrMap: true, // Encode empty Array or Object as '[]' or '{}' instead of 'null'.
 	CompactMarshaler: true,
-	CopyString : true,
-	ValidateString : true,
+	CopyString: true,
+	ValidateString: true,
 }.Froze()
 
 {{- end -}}