diff --git a/Appl/CEP/CS1/CS1_pp_lib/scripts/CS1_Offline_pipeline_control.py b/Appl/CEP/CS1/CS1_pp_lib/scripts/CS1_Offline_pipeline_control.py
index a3e8e8e8caeea9118d74df3b2010f17d2edf6901..eddf60f065343a3bb33c658c922a6a9129f5f41d 100644
--- a/Appl/CEP/CS1/CS1_pp_lib/scripts/CS1_Offline_pipeline_control.py
+++ b/Appl/CEP/CS1/CS1_pp_lib/scripts/CS1_Offline_pipeline_control.py
@@ -51,10 +51,16 @@ def spawn(dest, src, log):
         '/CS1_Offline_pipeline_node.py')
         ##Run the node script on every node
 ##        os.system('ssh -A -t ' + dest[0] + ' "cd /local/renting;time >> pipeline.log"')
-        os.system('ssh -A -t ' + dest[0] + ' "setenv PYTHONPATH /app/LOFAR/stable;' +
-        'source /app/scripts/doStableAIPS++; cd '+ dest[1] + ';python ' +
-        'CS1_Offline_pipeline_node.py -r' + src[0] + ' -m' + src[1] + ' -d' + dest[0] +
-        ' -l' + log + ' >> pipeline.log"')
+        if src[0]:
+            os.system('ssh -A -t ' + dest[0] + ' "setenv PYTHONPATH /app/LOFAR/stable;' +
+            'source /app/scripts/doStableAIPS++; cd '+ dest[1] + ';python ' +
+            'CS1_Offline_pipeline_node.py -r' + src[0] + ' -m' + src[1] + ' -d' + dest[0] +
+            ' -l' + log + ' >> pipeline.log"')
+        else:
+            os.system('ssh -A -t ' + dest[0] + ' "setenv PYTHONPATH /app/LOFAR/stable;' +
+            'source /app/scripts/doStableAIPS++; cd '+ dest[1] + ';python ' +
+            'CS1_Offline_pipeline_node.py  -m' + src[1] + ' -d' + dest[0] +
+            ' -l' + log + ' >> pipeline.log"')
 ## bash version for Pandey
 ##        os.system('ssh -A -t ' + dest[0] + ' "export PYTHONPATH=/app/LOFAR/stable;' +
 ##        '. /app/aips++/Unstable/aipsinit.sh; cd '+ dest[1] + ';python ' +