diff --git a/src/modules/04_registryPerson/components/detail/PersonalInformation/02_NameChangeHistory.vue b/src/modules/04_registryPerson/components/detail/PersonalInformation/02_NameChangeHistory.vue
index 73bab2a70..05ee33629 100644
--- a/src/modules/04_registryPerson/components/detail/PersonalInformation/02_NameChangeHistory.vue
+++ b/src/modules/04_registryPerson/components/detail/PersonalInformation/02_NameChangeHistory.vue
@@ -661,6 +661,7 @@ onMounted(async () => {
                 lazy-rules
                 emit-value
                 map-options
+                :rules="[(val:string) => !!val || `${'กรุณาเลือกยศ'}`]"
                 hide-bottom-space
                 input-debounce="0"
                 option-label="name"