diff --git a/capsul/pipeline/process_iteration.py b/capsul/pipeline/process_iteration.py
index 06651a43..f6a703f8 100644
--- a/capsul/pipeline/process_iteration.py
+++ b/capsul/pipeline/process_iteration.py
@@ -193,7 +193,7 @@ def _run_process(self):
         if hasattr(self.process, 'pipeline_node'):
             iterative_parameters = [
                 p for p in iterative_parameters
-                if self.process.pipeline_node.plug[p].activated]
+                if self.process.pipeline_node.plugs[p].activated]
 
         for parameter in iterative_parameters:
             trait = self.trait(parameter)