1 files changed, 4 insertions, 0 deletions

diff --git a/src/include/gnunet_set_service.h b/src/include/gnunet_set_service.h
index ca46d8746..6e822d82e 100644
--- a/src/include/gnunet_set_service.h
+++ b/src/include/gnunet_set_service.h
@@ -220,6 +220,10 @@ struct GNUNET_SET_Element
 enum GNUNET_SET_OptionType
 {
   /**
+   * List terminator.
+   */
+  GNUNET_SET_OPTION_END=0,
+  /**
    * Fail set operations when the other peer shows weird behavior
    * that might by a Byzantine fault.
    *