diff --git a/srv/RALockResource.srv b/srv/RALockResource.srv
index c631dd51dfcabd54b83744be94722d72c0b7d079..68eb661f41fa78ccbdc544d3040c91c1828018bd 100644
--- a/srv/RALockResource.srv
+++ b/srv/RALockResource.srv
@@ -3,6 +3,7 @@
 #
 
 string resource
+string node_uuid              # Node uuid for the TST node that do the locking
 ---
 bool got_lock                 # True if the locking succeeded
 bool success