diff --git a/mandaye/filters/vincennes.py b/mandaye/filters/vincennes.py
index 41faf95..676b3c6 100644
--- a/mandaye/filters/vincennes.py
+++ b/mandaye/filters/vincennes.py
@@ -166,7 +166,7 @@ class EspaceFamille:
             div = soup.find('div', {'class': 'bloc-model-1'})
             if div:
                 form = get_associate_form(env, values)
-                div.replaceWith(form)
+                div.replaceWith(BeautifulSoup(form))
                 response.msg = str(soup)
             else:
                 logger.warning('Filter EspaceFamille.resp_associate failed !')
@@ -216,7 +216,7 @@ class Duonet:
             form = soup.find('form', {'name': 'form1'})
             if form:
                 new_form = get_associate_form(env, values)
-                form.replaceWith(new_form)
+                form.replaceWith(BeautifulSoup(new_form))
             response.msg = str(soup)
         return response