diff --git a/src/app/signup/student-signup/student-signup.component.html b/src/app/signup/student-signup/student-signup.component.html
index 42ae75a458dce82147f7c54493fae0499a2844c9..8f8a4e86cc715598cf9c80453256d683b8ff0522 100644
--- a/src/app/signup/student-signup/student-signup.component.html
+++ b/src/app/signup/student-signup/student-signup.component.html
@@ -34,7 +34,7 @@
 
 
     <mat-form-field class="full-width">
-      <input matInput type="tel" formControlName="phoneNumber" placeholder="Numéro de téléphone" required>
+      <input matInput type="tel" minlength="10" maxlength="10" formControlName="phoneNumber" placeholder="Numéro de téléphone" required>
       <mat-hint>
         Il nous permettra de te contacter en cas de nécessité.
       </mat-hint>