diff --git a/dashboard/public/locales/en.json b/dashboard/public/locales/en.json
index 49662b4..6f1c5e2 100644
--- a/dashboard/public/locales/en.json
+++ b/dashboard/public/locales/en.json
@@ -39,7 +39,7 @@
     "disable": "Disable",
     "close": "Close",
     "save": "Save",
-    "day": "Day",
+    "days": "Days",
     "page": {
         "settings": {
             "certificate": {
diff --git a/dashboard/public/locales/kur.json b/dashboard/public/locales/kur.json
index 9ba00ad..8b5409f 100644
--- a/dashboard/public/locales/kur.json
+++ b/dashboard/public/locales/kur.json
@@ -32,7 +32,7 @@
     "disable": "Naçalakî ke",
     "close": "Dayixe",
     "save": "Seyv Bike",
-    "day": "Roj",
+    "days": "Roj",
     "page": {
         "settings": {
             "certificate": {
diff --git a/dashboard/src/features/users/dialogs/mutation/fields/onhold-expire-duration.tsx b/dashboard/src/features/users/dialogs/mutation/fields/onhold-expire-duration.tsx
index bae8c7f..9ca6b6a 100644
--- a/dashboard/src/features/users/dialogs/mutation/fields/onhold-expire-duration.tsx
+++ b/dashboard/src/features/users/dialogs/mutation/fields/onhold-expire-duration.tsx
@@ -27,7 +27,7 @@ export const OnHoldExpireDurationField: FC<OnHoldExpireDurationFieldProps> = ()
             name="on_hold_expire_duration"
             render={({ field }) => (
                 <FormItem>
-                    <FormLabel>{t('page.users.on_hold_expire_duration')} ({t('day')})</FormLabel>
+                    <FormLabel>{t('page.users.on_hold_expire_duration')} ({t('days')})</FormLabel>
                     <FormControl>
                         <Input
                             type="number"
diff --git a/dashboard/src/features/users/dialogs/mutation/fields/username.tsx b/dashboard/src/features/users/dialogs/mutation/fields/username.tsx
index 70dc2e8..3c8912e 100644
--- a/dashboard/src/features/users/dialogs/mutation/fields/username.tsx
+++ b/dashboard/src/features/users/dialogs/mutation/fields/username.tsx
@@ -6,13 +6,13 @@ import {
     FormLabel,
     FormMessage
 } from '@marzneshin/components';
-import { FC } from 'react'
+import { FC, InputHTMLAttributes } from 'react'
 import { useFormContext } from 'react-hook-form';
 import { useTranslation } from 'react-i18next';
 
 interface UsernameFieldProps { }
 
-export const UsernameField: FC<UsernameFieldProps> = () => {
+export const UsernameField: FC<UsernameFieldProps & InputHTMLAttributes<HTMLElement>> = ({ disabled }) => {
     const form = useFormContext()
     const { t } = useTranslation()
     return (
@@ -23,7 +23,7 @@ export const UsernameField: FC<UsernameFieldProps> = () => {
                 <FormItem>
                     <FormLabel>{t('username')}</FormLabel>
                     <FormControl>
-                        <Input {...field} />
+                        <Input disabled={disabled} {...field} />
                     </FormControl>
                     <FormMessage />
                 </FormItem>
diff --git a/dashboard/src/features/users/dialogs/mutation/index.tsx b/dashboard/src/features/users/dialogs/mutation/index.tsx
index 2141e09..0bbe1fa 100644
--- a/dashboard/src/features/users/dialogs/mutation/index.tsx
+++ b/dashboard/src/features/users/dialogs/mutation/index.tsx
@@ -71,7 +71,7 @@ export const UsersMutationDialog: FC<UsersMutationDialogProps> = ({
                     <form onSubmit={handleSubmit}>
                         <div className="flex-col grid-cols-2 gap-2 sm:flex md:grid">
                             <div>
-                                <UsernameField />
+                                <UsernameField disabled={(entity && entity.username) ? true : false} />
                                 <DataLimitFields />
                                 <ExpirationMethodFields entity={entity} />
                                 <NoteField />