1 files changed, 2 insertions, 2 deletions
diff --git a/PROTOCOL b/PROTOCOL
index 0b17c3c..f3d48ff 100644
--- a/PROTOCOL
+++ b/PROTOCOL
@@ -20,10 +20,11 @@ setup).
 Operations:
 
 Discovery:
+----------
 
 Master sends:
 
-{ "op": "discover" }
+{ "op": "discover", "role": "master" }
 
 Coordinators answer with:
 
@@ -38,4 +39,3 @@ On receiving a 'register' operation the master must handle accordingly,
 usually adding the coordinator as known and alive and provide new
 platforms and architectures to run workers on. Also currently scheduled
 jobs must be examined.
-