diff --git a/src/components/02_personnel-management/FormInformation.vue b/src/components/02_personnel-management/FormInformation.vue
index 3d6330dd..fc9067e1 100644
--- a/src/components/02_personnel-management/FormInformation.vue
+++ b/src/components/02_personnel-management/FormInformation.vue
@@ -206,7 +206,7 @@ watch(
         :rules="[
           (val: string) => val.length > 2 || $t('form.error.required'),
           (val: string) =>
-            (val.length > 0 && /^[a-zA-Z0-9]+$/.test(val)) ||
+            (val.length > 0 && /^[a-zA-Z0-9\s_]+$/.test(val)) ||
             $t('form.error.letterAndNumOnly'),
         ]"
       />