diff --git a/MDANSE_GUI/Src/MDANSE_GUI/Tabs/Visualisers/Action.py b/MDANSE_GUI/Src/MDANSE_GUI/Tabs/Visualisers/Action.py
index dc07f20d0..25ab46e8e 100644
--- a/MDANSE_GUI/Src/MDANSE_GUI/Tabs/Visualisers/Action.py
+++ b/MDANSE_GUI/Src/MDANSE_GUI/Tabs/Visualisers/Action.py
@@ -291,7 +291,8 @@ def test_file_outputs(self):
             return
         self.check_inputs()
         for widget in self._widgets:
-            widget.updateValue()
+            if isinstance(widget, (OutputFilesWidget, OutputTrajectoryWidget)):
+                widget.updateValue()
         self.allow_execution()
 
     def apply_instrument(self):