diff --git a/slic/utils/opmsg.py b/slic/utils/opmsg.py
index eea6fa0e..62b31a0d 100644
--- a/slic/utils/opmsg.py
+++ b/slic/utils/opmsg.py
@@ -92,7 +92,9 @@ class OperationMessage:
 
         self.prefix = prefix = f"SF-OP:{ID}-MSG"
 
-        pvname_send = f"{prefix}:OP-MSG-tmp"
+        ########################################################## ici
+
+        pvname_send = f"{prefix}:OP-MSG-TMP"
         self.pv_send = PV(pvname_send)
 
         self.status = OperationMessageStatus(prefix)