diff --git a/controllers/booking.py b/controllers/booking.py
index 7cf3a11..29354c9 100644
--- a/controllers/booking.py
+++ b/controllers/booking.py
@@ -86,6 +86,8 @@ class booking(WebsiteEventController,AuthSignupHome):
         vals={}
         data={}
         
+        
+            
         #gestion du retour page précédente depuis page de paiement : on supprime les éléments générés ( don , adhésion)
         if not post.get('nb_o'):
             if request.session['invoice_id']:
@@ -94,6 +96,12 @@ class booking(WebsiteEventController,AuthSignupHome):
                 invoice.unlink()
             return request.redirect('/booking/registration/options?event_id='+str(request.session['event_id']))
 
+        #si déjà inscrit, redirection vers page d'information
+        reg=request.env['event.registration'].search([('event_id','=',int(post.get('event_id'))),('email','=',post.get('email'))])
+        
+        if reg:
+            return http.request.render('kalachakra.booking_registration_already_registered')
+            
         vals['event_id']=post.get('event_id')
         vals['name']=post.get('name')
         vals['phone']=post.get('phone')
diff --git a/views/booking_website_registration.xml b/views/booking_website_registration.xml
index 676813e..253e587 100644
--- a/views/booking_website_registration.xml
+++ b/views/booking_website_registration.xml
@@ -1,5 +1,24 @@
 <odoo>
 
+<template id="kalachakra.booking_registration_already_registered" name="Already registered">
+        
+        <t t-call="website.layout">
+     
+        <div class="container-fluid">
+        <h6>
+       Your registration is not allowed because you are already registered !
+        <br></br>
+        For further informations, please send an email to <a href = "mailto:gestionnaire@centre-kalachakra.net">gestionnaire@centre-kalachakra.net</a> 
+        <br></br>
+        </h6>
+        <a href="/" class="ml-4 btn btn-secondary">back Home</a>
+        <br></br>
+        <br></br>
+
+        </div>
+        </t>
+</template>
+
 <template id="assets_frontend" name="booking assets" inherit_id="web.assets_frontend">
         <xpath expr="." position="inside">