diff --git a/lib/SimpleSAML/Utilities.php b/lib/SimpleSAML/Utilities.php
index 0313330efae0c8beaa771ebe56a50e53c60fa64a..c7eb315b1212729082dab7ab2269fe51284379af 100644
--- a/lib/SimpleSAML/Utilities.php
+++ b/lib/SimpleSAML/Utilities.php
@@ -6,6 +6,8 @@
  *
  * @author Andreas Ă…kre Solberg, UNINETT AS. <andreas.solberg@uninett.no>
  * @package simpleSAMLphp
+ *
+ * @deprecated This entire class will be removed in SimpleSAMLphp 2.0.
  */
 class SimpleSAML_Utilities
 {