diff --git a/client/src/pages/Users.tsx b/client/src/pages/Users.tsx
index 91ecfe7..0fa0654 100644
--- a/client/src/pages/Users.tsx
+++ b/client/src/pages/Users.tsx
@@ -147,7 +147,10 @@ export default function UsersPage() {
       // Nettoyer les données côté frontend avant envoi
       const cleanedUpdates = {};
       for (const [key, value] of Object.entries(data.updates)) {
-        if (value !== undefined && value !== null && value !== '') {
+        // For name fields (firstName, lastName, email), allow empty strings to clear the fields
+        if (key === 'firstName' || key === 'lastName' || key === 'email') {
+          cleanedUpdates[key] = value || '';
+        } else if (value !== undefined && value !== null && value !== '') {
           cleanedUpdates[key] = value;
         }
       }
diff --git a/server/routes.ts b/server/routes.ts
index f03f7ce..b8214f9 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -935,8 +935,8 @@ export async function registerRoutes(app: Express): Promise<Server> {
       const updateUserSchema = z.object({
         username: z.string().optional(),
         role: z.enum(['admin', 'manager', 'employee']).optional(),
-        firstName: z.string().optional(),
-        lastName: z.string().optional(),
+        firstName: z.union([z.string(), z.literal("")]).optional(),
+        lastName: z.union([z.string(), z.literal("")]).optional(),
         email: z.union([z.string().email(), z.literal("")]).optional(),
         password: z.string().optional(),
       });