diff --git a/ssl/panel/class/m_ssl.php b/ssl/panel/class/m_ssl.php
index e2050938..05ceeaca 100644
--- a/ssl/panel/class/m_ssl.php
+++ b/ssl/panel/class/m_ssl.php
@@ -527,7 +527,11 @@ class m_ssl {
                     $found = true;
                     break;
                 }
-                $offset = strpos($fqdn, ".", $offset);
+                $offset = strpos($fqdn, ".", $offset+1);
+                //No more dot, we prevent an infinite loop
+                if (!$offset) {
+                    break;
+                }
             } while (true);
             if (!$found) {
                 echo "FATAL: didn't found fqdn $fqdn in sub_domaines table !\n";