diff --git a/src/yunohost/user.py b/src/yunohost/user.py
index 97466f7f2..51b7400de 100644
--- a/src/yunohost/user.py
+++ b/src/yunohost/user.py
@@ -137,7 +137,7 @@ def user_create(auth, username, firstname, lastname, mail, password,
     # Adapt values for LDAP
     fullname = '%s %s' % (firstname, lastname)
     char_set = string.ascii_uppercase + string.ascii_lowercase + string.digits + "./"
-    salt = ''.join([random.SystemRandom().choice(char_set) for x in range(12)])
+    salt = ''.join([random.SystemRandom().choice(char_set) for x in range(16)])
     salt = '$6$' + salt + '$'
     user_pwd = '{CRYPT}' + crypt.crypt(str(password), salt)
     attr_dict = {