diff --git a/src/radical/pilot/raptor/worker.py b/src/radical/pilot/raptor/worker.py
index 1c90a0c5d1..fda1a99e99 100644
--- a/src/radical/pilot/raptor/worker.py
+++ b/src/radical/pilot/raptor/worker.py
@@ -39,7 +39,8 @@ def __init__(self, manager, rank, raptor_id):
 
         self._log  = ru.Logger(name=self._uid,   ns='radical.pilot.worker',
                                level='DEBUG', targets=['.'], path=self._sbox)
-        self._prof = ru.Profiler(name=self._uid, ns='radical.pilot.worker',
+        self._prof = ru.Profiler(name='%s.%04d' % (self._uid, self._rank),
+                                 ns='radical.pilot.worker',
                                  path=self._sbox)
 
         # register for lifetime management messages on the control pubsub