diff --git a/htdocs/mailmanspip/class/mailmanspip.class.php b/htdocs/mailmanspip/class/mailmanspip.class.php
index dff11b3149a..ee912d215c2 100644
--- a/htdocs/mailmanspip/class/mailmanspip.class.php
+++ b/htdocs/mailmanspip/class/mailmanspip.class.php
@@ -138,6 +138,7 @@ class MailmanSpip
         curl_setopt($ch, CURLOPT_FAILONERROR, true);
         @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
         curl_setopt($ch, CURLOPT_TIMEOUT, 5);
+        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 
         $result = curl_exec($ch);
         dol_syslog('result curl_exec='.$result);