diff --git a/CEP/Pipeline/recipes/sip/master/copier.py b/CEP/Pipeline/recipes/sip/master/copier.py
index 0f9f8405a822c1a2a651adfaf9e5e6a615e75a0c..c15dba135c90f2ca7df798cedea9d298286506c5 100644
--- a/CEP/Pipeline/recipes/sip/master/copier.py
+++ b/CEP/Pipeline/recipes/sip/master/copier.py
@@ -249,7 +249,7 @@ class copier(MasterNodeInterface):
         # Run the compute nodes with the node specific mapfiles
         for source, target in zip(self.source_map, self.target_map):
             args = [source.host, source.file, target.file, globalfs]
-            self.append_job(target.host args)
+            self.append_job(target.host, args)
 
         # start the jobs, return the exit status.
         return self.run_jobs()