diff --git a/csrf.php b/csrf.php
index 8070047..14643e3 100644
--- a/csrf.php
+++ b/csrf.php
@@ -57,18 +57,18 @@ class csrf
       return TRUE;
     if (! isset ($_SESSION["domframework"]["csrf"]["csrf"]))
     {
-      throw new Exception (dgettext("domframework",
+      throw new \Exception (dgettext("domframework",
                                     "No previous CSRF token : abort"), 406);
     }
     if ($_SESSION["domframework"]["csrf"]["csrf"] !== $tokenFromUser)
     {
-      throw new Exception (dgettext("domframework",
+      throw new \Exception (dgettext("domframework",
                                     "Invalid CSRF token provided"), 406);
     }
     if (($_SESSION["domframework"]["csrf"]["csrfStart"] + $this->csrfTimeout) <
         microtime (TRUE))
     {
-      throw new Exception (dgettext("domframework",
+      throw new \Exception (dgettext("domframework",
                                     "Obsolete CSRF token provided"), 406);
     }
     return TRUE;