diff --git a/call-for-nodes.html b/call-for-nodes.html
index b3e96ab..36888b1 100644
--- a/call-for-nodes.html
+++ b/call-for-nodes.html
@@ -71,6 +71,7 @@ we imagine that all person present reflects on hacking practice and production.
      DAY:         When you prefer to do the talk (optional)
      NEEDS:       Projector, table, pen, keyboards, humans, ...
      LANGUAGE     The lang you may use to speak during your talk 
+     DURATION:    1h / 2h / ...
      DESCRIPTION: Try to define what will you talk about 
                   ....