diff --git a/codegen/customizations.yml b/codegen/customizations.yml
index 72c9d36..f8d66b2 100644
--- a/codegen/customizations.yml
+++ b/codegen/customizations.yml
@@ -489,10 +489,6 @@ customizations:
       fields:
         _all:
           omitEmpty: false
-    SettingNtp:
-      fields:
-        _all:
-          omitEmpty: false
     SettingRsyslogd:
       fields:
         Contents:
diff --git a/unifi/setting_ntp.generated.go b/unifi/setting_ntp.generated.go
index 3c9ce4a..fcbd430 100644
--- a/unifi/setting_ntp.generated.go
+++ b/unifi/setting_ntp.generated.go
@@ -29,11 +29,11 @@ type SettingNtp struct {
 
 	Key string `json:"key"`
 
-	NtpServer1        string `json:"ntp_server_1"`
-	NtpServer2        string `json:"ntp_server_2"`
-	NtpServer3        string `json:"ntp_server_3"`
-	NtpServer4        string `json:"ntp_server_4"`
-	SettingPreference string `json:"setting_preference" validate:"omitempty,oneof=auto manual"` // auto|manual
+	NtpServer1        string `json:"ntp_server_1,omitempty"`
+	NtpServer2        string `json:"ntp_server_2,omitempty"`
+	NtpServer3        string `json:"ntp_server_3,omitempty"`
+	NtpServer4        string `json:"ntp_server_4,omitempty"`
+	SettingPreference string `json:"setting_preference,omitempty" validate:"omitempty,oneof=auto manual"` // auto|manual
 }
 
 func (dst *SettingNtp) UnmarshalJSON(b []byte) error {